Volume: 30 Issue 2
64 Article(s)

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Excitation Transfer between High-Lying States in K2 in Collisions with Ground State K and H2 Molecules
SHEN Xiao-yan, LIU Jing, DAI Kang, and SHEN Yi-fan
Pure potassium vapor or K-H2 mixture was irradiated in a glass fluorescence cell with pulses of 710 nm radiation from an OPO laser, populating K2(1Λg) state by two-photon absorption. Cross sections for 1Λg-3Λg transfer in K2 were determined using methods of molecular fluorescence. During the experiments with pure K vap
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 289 (2010)
Study of Emission Spectroscopy of OH Radicals in Pulsed Corona Discharge
WEI Bo, LUO Zhong-yang, XU Fei, ZHAO Lei, GAO Xiang, and CEN Ke-fa
In the present paper, OH radicals generated by pulsed corona discharge in humidified air, N2 and Ar in a needle-plate reactor were measured by emission spectra. With the analysis of the emission spectra, the influence of pulse peak voltage and frequency on OH radical generation was investigated in the three kinds of ba
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 293 (2010)
Theoretical Analysis of Photoacoustic Spectrum of NO Molecule
ZHANG Gui-yin, and JIN Yi-dong
The technique of photoacoustic (PA) spectrum is based on the conversion of photon to acoustic energy by collision quenching of the excited molecules. It holds the characteristic of higher detection sensitivity, wide detection spectral region, no damage to the sample etc. It is used in many scientific observation areas
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 297 (2010)
Luminescence Properties of Silane Coupling Agent Modified Stilbene 3 Doped Lead-Tin-Fluorophosphate Glass
GU Mu, ZHAO Zhi-wei, LIU Xiao-lin, NI Chen, HUANG Shi-ming, LIU Bo, and OUYANG Xiao-ping
In the present work, the SnF2 powder was modified by silane coupling agent KBM403. The Fourier transform infrared spectrum (FTIR) of the modified powder showed that KBM403 was absorbed on the surface of SnF2 particles through physical absorption besides a weak chemical absorption. Then the SnF2 powder was modified by t
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 308 (2010)
Quantitative Analysis of Chlorophyll-a Reflectance Spectrum in Red Spectral Region of Water
MA Wan-dong, XING Qian-guo, ZHANG Yuan-zhi, SHI Ping, and LIU Ya-long
The chlorophyll-a concentration in waters is one of the main parameters of water color remote sensing in case Ⅱ waters. There is a reflectance peak in red band region because of inherent optical properties. Based on the coefficients of absorption and backscattering of waters, colored dissolved organic matter (CDOM), tr
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 313 (2010)
Research on the Application of Response Variable Transform Method in High Scattering Medium with Near-Infrared Spectroscopy
PENG Dan, and XU Ke-xin
In the present paper, a new method named response variable transform (RVT) is proposed to reduce the effect of scattering in the NIR spectroscopy measurement. In the RVT method, the rates of the change in light intensity at different spatial positions with the concentration of the investigated composition are firstly s
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 318 (2010)
Rapid Prediction of Total Organic Carbon Content and CEC in Soil Using Visible/Near Infrared Spectroscopy
FANG Li-min, FENG Ai-ming, and LIN Min
For the rapid detection of the total organic carbon (TOC) content and cation exchange capacity (CEC) in soil, visible/near infrared spectra (Vis/NIR) of 300 soil samples were analyzed. The algorithm of fast independent component analysis (FastICA) was used to decompose the data of Vis/NIR spectrum, and their independen
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 327 (2010)
Identification of Varieties of Textile Fibers by Using Vis/NIR Infrared Spectroscopy Technique
WU Gui-fang, and HE Yong
The aim of the present paper was to provide new insight into Vis/NIR spectroscopic analysis of textile fibers. In order to achieve rapid identification of the varieties of fibers, the authors selected 5 kinds of fibers of cotton, flax, wool, silk and tencel to do a study with Vis/NIR spectroscopy. Firstly, the spectra
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 331 (2010)
Evaluation of Heart Impact in the 100 m Extreme Intensity Sport Using Near-Infrared Non-Invasive Muscle Oxygen Detecting Device and Sports Heart Rate Detection Technology
WANG Pei-yong, LONG Fei-xiao, FU Lan-ying, LI Yue, DING Hai-shu, QU An-lian, ZHOU Xiao-ping, TENG Yi-chao, XING Yu, and YANG Liang-ce
Using continuous two wavelength near-infrared technology to detect the variation in the consistency of oxygen hemoglobin in the muscle and the sports heart rate wireless real time collection technology, we devised the real time muscle tissue oxygenation and instantaneous heart rate experiment scheme and implemented it
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 340 (2010)
Research on the Fourth Generation of Radix Isatidis by FTIR
ZHU Yan-ying, GUAN Ying, WANG Li-peng, GUO Xi-hua, and WANG Zhi-zhou
FTIR spectra of fourth-generation space bred radix isatidis and FTIR spectra of radix isatidis in a ground group were determined on the whole. Comparative analysis was conducted on main constituents (components) to accumulate data for comprehensively understanding and thoroughly studying the inherent property, and to e
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 345 (2010)
Analysis and Estimate of Corn CNCPS Component by Near Infrared Reflectance (NIR) Spectroscopy
YANG Fang, XIE Cheng-wei, LIU Da-sen, Yu Peiqiang, and LI Zhong-yu
The objective of the present study was to investigate the feasibility of predicting the CNCPS (cornell net carbohydrate and protein system) composition of corn by near infrared reflectance spectroscopy (NIRS). Sixty-five corn samples from Heilongjiang province were used. The partial least square (PLS) regression method
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 348 (2010)
Determination of the Contents of Chlorogenic Acid and Phillyrin of Shuanghuanglian Oral Fluid Using NIRS
DAI Chuan-yun, GAO Xiao-yan, TANG Bo, FU Ya, and LIU Huo-an
The aim of the present study was to establish the model of predicting the contents of chlorogenic acid and phillyrin in Shuanghuanglian oral fluid using NIR to realize quick quality evaluation of Shuanghuanglian oral fluid. To this end, many batches of Shuanghuanglian oral fluid were selected, and the contents of chlor
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 358 (2010)
Investigation of Typical Melamine Urinary Stones Using Infrared Spectra
SI Min-zhen, LI Qing-yun, LIU Ren-ming, KANG Yi-pu, WANG Kun-hua, and ZHANG Zhi-guo
A typical melamine kidney stone confirmed by some medicine expert was collected from the first people’s hospital of Yunnan. The kidney stone was adequately determined by PE corporation spectra 100(with resolution of 1 cm-1). The stone samples for FTIR analysis were prepared using the KBr pellet technique, where 2 mg of
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 363 (2010)
SERS Spectra of Xanthomonas Oryzae pv. Oryzae (Xoo) on Nano Silver Film Prepared by Electrolysis Method
KANG Yi-pu, SI Min-zhen, LI Qing-yu, HUANG Qiong, and LIU Ren-ming
The nano silver film was prepared by electrolysis method using silver nitrate and polyvinyl alcohol (PVA) in deionized water as the electrolyte, with four glass slides put in the electrolyte and two silver rods dipped into the electrolyte as the anode and cathode. A direct current was applied to the rods, then the four
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 372 (2010)
Effect of pH on the Fluorescence Characteristic of Dissolved Organic Matter in Landfill Leachate
ZHAO Yue, HE Xiao-song, XI Bei-dou, WEI Dan, WEI Zi-min, JIANG Yong-hai, LI Ming-xiao, and YANG Tian-xue
Due to its high sensitivity, good selectivity and nondestructivity nature, fluorescence technique is suitable to the study of DOM. In the present study, fluorescence characteristics of dissolved organic matter (DOM) from three different ages of landfill leachate (1a, 5a, 10a) under different pH value were investigated.
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 382 (2010)
Fluorescence Spectra Analysis of Papain Structure Treated by Dynamic High Pressure Microfluidization in Low Pressure Ranges
LIU Wei, XIE Ming-yong, ZHONG Ye-jun, LIU Cheng-mei, GUAN Bin, and WANG Qian
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 387 (2010)
Studies on TCs-Fe(Ⅲ) System Separation/Enrichment of Trace Tetracyclines Antibiotic by Combination Ionic Liquid [Hmim]PF6 Solvent Sublation with Fluorescence Spectroscopy Determination
WANG Liang, YAN Yong-sheng, LI Hua-ming, and SUN Han-wen
It is the first time ionic liquid was applied to gas solvent sublation, which established a new method for separation/enrichment of tetracyclines(TCs) antibiotic based on ionic liquid gas solvent sublation. The optimizing experimental conditions were as follows: the mixture of ionic liquid 1-hexyl-3-methylimidazo lium
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 391 (2010)
Effects of Redox State of Disulfide Bonds on the Intrinsic Fluorescence and Denaturation of Trx-Fused Gibberellin-Induced Cysteine-Rich Protein from Gymnadnia conopsea
ZHANG Teng, FENG Juan, LI Yang, CHEN Rui, TANG Li-xia, PANG Xiao-feng, and REN Zheng-long
In the present paper, thioredoxin-fused gibberellin-induced cysteine-rich protein from Gymnadnia conopsea, desigated as Trx-GcGASA and expressed prokaryotically, was purified and identified by using Ni2+-NTA affinity chromatography column and SDS-PAGE, and then its intrinsic fluorescence was investigated in the absence
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 395 (2010)
Fuzzy Recognition Research on Explosive and Illegal Drug Based on Terahertz Spectroscopy Detection
LIU Wen-tao, LI Jing-wen, DU Chun-yan, and SUN Zhi-hui
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 401 (2010)
Analysis of Influencing Factors of Snow Hyperspectral Polarized Reflections
SUN Zhong-qiu, ZHAO Yun-sheng, YAN Guo-qian, NING Yan-ling, and ZHONG Gui-xin
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 406 (2010)
Study on Modeling Method of Total Viable Count of Fresh Pork Meat Based on Hyperspectral Imaging System
WANG Wei, PENG Yan-kun, and ZHANG Xiao-li
Once the total viable count (TVC) of bacteria in fresh pork meat exceeds a certain number, it will become pathogenic bacteria. The present paper is to explore the feasibility of hyperspectral imaging technology combined with relevant modeling method for the prediction of TVC in fresh pork meat. For the certain kind of
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 411 (2010)
Hyperspectrum Based Prediction Model for Nitrogen Content of Apple Flowers
ZHU Xi-cun, ZHAO Geng-xing, WANG Ling, DONG Fang, LEI Tong, and ZHAN Bing
The present paper aims to quantitatively retrieve nitrogen content in apple flowers, so as to provide an important basis for apple informationization management. By using ASD FieldSpec 3 field spectrometer, hyperspectral reflectivity of 120 apple flower samples in full-bloom stage was measured and their nitrogen conten
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 416 (2010)
Study on Hyperspectral Estimation of Pigment Contents in Leaves of Cotton Under Disease Stress
CHEN Bing, LI Shao-kun, WANG Ke-ru, WANG Fang-yong, XIAO Chun-hua, and PAN Wen-chao
The spectrum reflectance and pigment contents of cotton leaves infected with Verticillium wilt were measured in cotton disease nursery and field in different growth phases, and severity level of Verticillium wilt was investigated. The correlation between pigment contents of cotton leaves with Verticillium wilt and spec
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 421 (2010)
Horticultural Plant Diseases Multispectral Classification Using Combined Classified Methods
FENG Jie, LI Hong-ning, YANG Wei-ping, HOU De-dong, and LIAO Ning-fang
The research on multispectral data disposal is getting more and more attention with the development of multispectral technique, capturing data ability and application of multispectral technique in agriculture practice. In the present paper, a cultivated plant cucumber’ familiar disease (Trichothecium roseum, Sphaerothe
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 426 (2010)
Study on Canopy Spectral Characteristics of Paddy Polluted by Heavy Metals
REN Hong-yan, ZHUANG Da-fang, PAN Jian-jun, SHI Xue-zheng, SHI Run-he, and WANG Hong-jie
Because of frequent mining, heavy metals are brought into environment like soils, water and atmosphere, resulting heavy metal contamination in the agricultural region beside mines. Heavy metals contamination causes vegetation stress like destruction of chloroplast structure, chlorophyll content decrease, blunt photosyn
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 430 (2010)
CdSe/ZnSe Quantum Dots via a Two-Phase Solution System Process Solubilization and Spectroscopic Characterization
ZHANG Qing-bin, SONG Kai, KONG Xiang-gui, ZENG Qing-hui, ZHANG You-lin, SUN Ya-juan, and LIU Xiao-min
In the present work, the CdSe/ZnSe core/shell quantum dots (QDs) were successfully transferred from organic phase to water phase via a two-phase solution system process by surface coating with amphiphilic polymer. Surface coating with amphiphilic polymer is an effective method, which can form stable soluble QDs in wate
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 435 (2010)
Evaluation of Kinematic Capability of Different Groups by Detecting Oxygen Saturation of Muscle Using Near Infrared Spectroscopy
LI Yue, QI He-bin, SHI Ji-zhao, TENG Yi-chao, and DING Hai-shu
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 440 (2010)
A Quick Algorithm of Dynamic Spectrum Photoelectric Pulse Wave Detection Based on LabVIEW
LIN Ling, LI Na, and LI Gang
Dynamic spectrum (DS) detection is attractive among the numerous noninvasive blood component detection methods because of the elimination of the main interference of the individual discrepancy and measure conditions. DS is a kind of spectrum extracted from the photoelectric pulse wave and closely relative to the artery
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 444 (2010)
The Multi-angle Polarization Spectral Character of Water and Its Applications in Water Color Remote Sensing
WU Tai-xia, YAN Lei, XIANG Yun, ZHAO Yun-sheng, and CHEN Wei
The reflectance of pure water is very low at visible and near infrared bands. Its spectral characteristics are not obvious. Water always shows dark hue in optical remote sensing images. This dark hue causes the difficulties in water remote sensing identification. There is an interesting phenomenon when the authors rese
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 448 (2010)
Spectral Analysis of Green Pigments of Painting and Colored Drawing in Northern Chinese Ancient Architectures
WANG Li-qin, YAN Jing, FAN Xiao-lei, and MA Tao
It is important to identify pigments of painting and colored drawing in ancient architectures in order to restore and conserve them. The components of green pigments were detected with X-ray diffraction (XRD), X-ray fluorescence (XRF) and scanning electron microscopy-energy dispersive X-ray (SEM-EDX). Twenty-seven samp
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 453 (2010)
Study on Conformation Transitions of Trichokonin Ⅵ, a Peptaibol-Like Antimicrobial Peptide, in Different Solvents by Circular Dichroism Spectroscopy
DONG Xiao-wei, SONG Xiao-yan, SHI Mei, and ZHANG Yu-zhong
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 458 (2010)
Study of the Effect of Light Source Stability on the Signal to Noise Ratio in Degenerate Four Wave Mixing Experiment
WANG Wei-bo, CHEN De-ying, FAN Rong-wei, and XIA Yuan-qin
The effects of the stability of dye laser on the signal to noise ratio in degenerate four-wave mixing (DFWM) were first investigated in iodine vapor using forward geometries. Frequency-doubled outputs from a multi-mode Nd∶YAG laser pumped dye laser with laser dye PM580 dissolved in ethanol was used. With the help of fo
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 462 (2010)
PLS Analysis Used for Noninvasive Measurement of Human Neutrophiclic Granulocyte Based on Dynamic Spectrum Method
ZHANG Bao-ju, JIA Ping, ZHANG Zhi-yong, LIN Ling, MEN Jian-long, and LI Gang
Dynamic spectrum method was used to noninvasive measurement of human neutrophilic granulocyte percent for the first time. In vivo measurements were carried out in 21 healthy volunteers, and parital least-squares was used to establish the calibration model of subjects’ neutrophilic granulocyte percent values against dyn
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 466 (2010)
Research of Coupling Effects among Various Water Quality Components
ZHOU Guan-hua, TIAN Guo-liang, CHEN Jun, LI Jing, and GONG A-du
Based on aquatic optics Monte Carlo hyperspectral simulation, the interactions between spectral characteristics of chlorophyll a, total suspended matter (TSM) and colored dissolved organic matter (CDOM) were discussed. The result shows that the nonlinear and spectrally varying interactions between different water compo
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 470 (2010)
Spectroscopic Investigation on the Interaction between Astragalin from Lotus Leaf and DNA
DENG Sheng-guo, DENG Ze-yuan*, FAN Ya-wei, SHAN Bin, and XIONG Dong-mei
The interaction between astragalin (AST) from lotus leaf and deoxyribonucleic acid (DNA) in Tris-HCl buffer (pH=7.4) was investigated by the application of fluorescence spectroscopy and ultraviolet absorption spectroscopy, the effects of ionic strength and anion quencher KI on the fluorescence intensity of AST from lot
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 476 (2010)
Study on the Interaction of Ofloxacin and Levofloxacin with DNA
TONG Chang-lun, and ZHANG Xiao-xiang
The interaction of ofloxacin (OFLX) and levofloxacin (L-OFLX) with calf thymus DNA(ctDNA)was studied by absorption spectra, fluorescence spectra, fluorescence polarization, and K3Fe(CN)6 quenching tests to show the interaction differences and binding modes. The experimental results of absorption spectra indicated that
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 481 (2010)
Resonance Scattering Detection of Trace Hg2+ Using Herring Sperm NDA Modified Nanogold
LING Shao-ming, LI Jian-fu, LIANG Ai-hui, WEN Gui-qing, KANG Cai-yan, and JIANG Zhi-liang
In pH 7.0 tris-HCl buffer solutions and in the presence of 0.017 mol?L-1 NaCl, herring sperm DNA was combined with gold nanoparticles in size of 10 nm to form stable complex, and the NaCl did not cause the aggregation of the gold nanoparticles. Upon addition of Hg2+, that reacted with DNA to form more stable complex of
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 486 (2010)
The Influence of Nonuniform Vertical Profiles of Chlorophyll Concentration on Apparent Optical Properties
XI Ying, DU Ke-ping, ZHANG Li-hua, Zhongping Lee, and LI Xiao-wen
Previous researches on ocean optics and ocean color were based on the assumption that inherent optical properties and optically significant constituents of seawater are homogeneous in the vertical direction. However, oceanographic observations show that the assumption is not always exact and the vertical inhomogeneity
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 489 (2010)
Effect of Dynamic High Pressure Microfluidization Treatment on the Microstructure of Ovalbumin
TU Zong-cai, WANG Hui, LIU Guang-xian, CHEN Guang, DOU Yu-xin, and ZHANG Xue-chun
The effect of dynamic high pressure microfluidization on the microstructure of ovalbumin was studied by CD spectra, XRD spectra, ANS fluorescence probe emission spectra and UV absorption spectra. The results indicated that the changes in the microstructure were dependent on the pressure. CD spectra were used to examine
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 495 (2010)
Applications of Real-Time Monitoring Techniques in Chemical Synthetic Ingredients
SHI Kai-yun, XIA Zhi-ning, GAN Ting-ting, JIANG Xue-mei, and XIA Chen
Real-time monitoring technique for process parameters and/or insight variables of chemical synthetic ingredients is a novel chemical process analysis method, which can real time monitor the chemical synthetic ingredients, reveal the mechanism of chemical reaction occurring, reaction courses and kinetic characteristics,
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 499 (2010)
Preparation and Transmissivity of ZnS Nanocolumn Thin Films with Glancing Angle Deposition Technology
LU Li-fang, XU Zheng, ZHANG Fu-jun, ZHAO Su-ling, SONG Dan-dan, LI Jun-ming, WANG Yong-sheng, and XU Xu-rong
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 504 (2010)
New Index for Crop Canopy Fresh Biomass Estimation
CHEN Peng-fei, Nicolas Tremblay, WANG Ji-hua, Philippe Vigneault, HUANG Wen-jiang, and LI Bao-guo
The objective of the present study is to propose a new vegetation index for corn canopy fresh biomass estimation, which improves the ability to accurately estimate high biomass levels by remote sensing technology. For this purpose, hyperspectral reflectance data of corn canopies were collected using a ground-based spec
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 512 (2010)
Separation with Ion Exchange Fiber Column and Determination of La, Nd, Eu and Gd in High Purity Ytterbium Oxide by ICP-AES
GONG Qi, CHEN Jie, JI Ri-wen, PAN Xue-zhen, and WU Juan
In the present paper, trace La, Nd, Eu and Gd were separated and enriched with strong acid ion exchange fiber column from high purity Yb2O3, and then determined by Optima 5 300 DV ICP-AES. The ion exchange fiber’s breakthrough capacity for Yb was 134 mg?g-1. The separation condition using 4.0 g fiber column was that af
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 523 (2010)
Studies on Six Heavy Metal Elements Dissolution Characteristics of Andrographis Herb by ICP-OES
TANG Rui, LI Tian-peng, GU Xue-shi, LI Yong-jian, and YANG Yi
A simple and accurate method for the simultaneous determination of As, Ba, Cd, Cr, Cu and Pb in andrographis herb by inductively coupled plasma optical emission spectrometry (ICP-OES) was developed. The samples were digested by HNO3-HClO4. The digestion-determination method was evaluated with the relative standard devi
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 528 (2010)
Monitoring the Sewage Degradation by Analyzing Optic Fiber SPR Spectrum Character
ZHANG Xiao-li, LIANG Da-kai, ZENG Jie, ZHAO Zhi-yuan, and ZENG Jian-min
The working principle of the optic fiber SPR sensor was discussed in the present paper at first. The feasibility of using it to monitor the degradation process of the environmental sewage represented by the methyl orange was studied Finally, the optic fiber SPR sensor was adopted to monitor the change in degradation co
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 532 (2010)
Applications of Atomic Emission Spectrum from Liquid Electrode Discharge to Metal Ion Detection
MAO Xiu-ling, WU Jian, and YING Yi-bin
The fast and precise detection of metal ion is an important research project concerning studies in diverse academic fields and different kinds of detecting technologies. In the present paper, the authors review the research on atomic emission spectrum based on liquid electrode discharge and its applications in the dete
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 537 (2010)
Determination of Mineral Elements in Soybean from Different Producing Areas by ICP-AES
WAN Jie, LIU Cheng-mei, LIU Wei, TU Zong-cai, LI Chu, and ZHANG Wen-qin
Soybeans from Jiangxi, Heilongjiang, Jilin and Anhui were digested by nitric acid. The contents of mineral elements K, P, Mg, Ca, Fe, Al, Zn, Mn and Na in four samples were analyzed by inductively coupled plasma atomic emission spectrometry (ICP-AES). The differences between samples were determined by Duncan’s multiple
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 543 (2010)
Determination of Inorganic Elements in the Soil-Grass-Animal System by Sealed Microwave Digestion ICP-AES
XIN Guo-sheng, HU Zheng, ZHOU Wei, YANG Zhi-qiang, GUO Xu-sheng, and LONG Rui-jun
The contents of inorganic elements including K, Ca, Na, Mg, P, S, Fe, Cu, Mn, Zn, Mo, and Co in the soil-grass-animal mineral system from Qinghai Tibetan Plateau were determined by ICP-AES using high pressure system-sealed microwave digestion. The sample of soil was digested with HNO3-HF-H2O2 acids system, but others i
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 546 (2010)
Application of Synchrotron Radiation X-Ray Fluorescence to Investigating the Distribution of Trace Elements in Different Organs of Greenhouse Rape
XIN Shu-zhen, SONG Yan-jing, LV Chao, RUI Yu-kui, XU Wei, WU Dan, WU Shuang, ZHONG Jun, and CHEN Qing
The trace elements distribution in the root and leaf of greenhouse rape was determined with synchrotron radiation XRF, and many essential elements for human health were found, including Co, Mn, Ni, Fe, Cu, Zn, K and Ca, among which the contents of Ca, Mn, Fe, Cu and Zn are especially higher than the other elements. The
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 554 (2010)
Study on the Configuration and Applications of High Spectral Resolution Raman Spectrometer
LIU Zhao-jun, ZHAO Cun-hua, HAN Li-gang, and MO Yu-jun
In the present paper the authors studied theoretically and experimentally the relationship between spectral resolution and grating density, the limitations to improve the spectral resolution by using high density grating, the use of longer focal length grating to increase spectral resolution without compromising instru
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 567 (2010)
An Enzyme Sensor for Phenolic Compounds Analysis
LI Ye, YANG Hui, HAN Wei-wei, LIAO Ming-xia, and LU Yi-qiang
Phenolic analysis was established on the immobilized horseradish peroxidase (HRP) catalyzed oxidation reaction. It subsequently catalyzed oxidative coupling of phenol with 4-aminophenazone using aqueous hydrogen peroxide to form intensely colored products for spectrophotometric analysis. HRPs were trapped in sol-gel ma
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 571 (2010)
[in Chinese]
  • Publication Date: Feb. 01, 2010
  • Vol. 30 Issue 2 1 (2010)