University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Zhongguo Yaoke Daxue Xuebao

  • Publisher: Wanfang Data
  • FAD Code: JCPU
  • CODEN: ZHYXE9
  • ISSN: 1000-5048
  • Abbreviation: Zhongguo Yaoke Daxue Xuebao
  • DOI Prefix: 10.3321/j.issn:1000-5048
  • Other Name(s): Journal of China Pharmaceutical University
  • Language: Chinese
  • Comments: Fulltext from 2000 V31

Citations 4

"Determination Of Arsenic In Chinese Herbal Extract By Flow Injection-hydride Generation-atomic Absorption Spectrometry"
Zhongguo Yaoke Daxue Xuebao 2003 Volume 34, Issue 4 Pages 48-50
DENG Shi-Lin , LI Xin-Feng, DENG Fu-Liang, LIANG Shao-Xian

Abstract: AIM: To investigate the various test conditions and effect factors for determination of arsenic by flow injection-hydride generation-atomic absorption spectrometry(FI-HG-AAS) and to develop a method for the determination of arsenic in Chinese herbal extract by flow injection-hydride generation-atomic absorption spectrometry. METHOD: Flow injection-hydride generation-atomic absorption spectrometry. RESULT: The detection limit for arsenic was 0.56 ?g/L under optimum conditions. The linear range was 0.6-30 ?g/L. The relative standard deviation was less than 5% and the recoveries was 91%-103%. This method has been applied to the determination of arsenic in Chinese herbal extract with satisfactory results. CONCLUSION: This method overcame the problems of slow analysis procedure, large sample consuming amount, complex operation and error easily caused by manual injection speed and injection volume in traditional interval hydride generation-atomic absorption spectrometry. It is simple, rapid, highly sensitive and automatic method.
Arsenic

"Determination Of Trace Arsenic In Spirulina Plaensis Tablets By Flow Injection Hydride Generation Atomic Fluorescence Spectrometry"
Zhongguo Yaoke Daxue Xuebao 1998 Volume 29, Issue 6 Pages 473-474
Dong Shunling

Abstract: A method for determination of trace arsenic in Spirulina plaensis tablets by flow injection hydride generation atomic fluorescence spectrometry was developed. Digesting sample with HNO3-H2SO4-HCIO4 (20: 1: 1) mixed acid, and potassium iodide and ascorbic acid were chosen as the interference suppressing agents. The characteristic concentration. (0.0044 absorption) was 0.2 ng/ ml, the average recovery was 96 .6% (n=5, RSD=2. 8%), within 1. 0~5. 0 ng/ ml, arsenic had a good linearity, and the least square equation is y=0.205x-0. 0001 (r=0. 9994, n=5).
Arsenic Pharmaceutical Fluorescence Interferences

"Microprocessor-based Instrument For Flow Injection Analysis"
Zhongguo Yaoke Daxue Xuebao 1991 Volume 22, Issue 1 Pages 8-11
Gao Guoqiang, Luo Guoan, Chen Yuying

Abstract: A microprocessor-based instrument for flow injection analysis is described. Processes such as loading and injection of samples, receiving and processing of signals, printing and displaying of results automatically, are controlled. The instrument was applied in the determination of 100 and 800 ppm of K2Cr2O7, coefficient of variation were 1.42 and 1.09%, respectively.
Dichromate Spectrophotometry Automation Signal processing Computer

"Study On The Dissolution Rate Of Acetaminophen Tablets By Flow Injection Analysis"
Zhongguo Yaoke Daxue Xuebao 1988 Volume 19, Issue 4 Pages 294-296
Jiang Xinru, Mei Rongfen and An Dengkui

Abstract: The dissolution rate of acetaminophen(paracetamol) tablets by using flow injection analysis coupled with UV spectrophotometer was studied. The sample solution (102 µL) was injected into the carrier stream, which was a 0.01 mol/L sodium hydroxide solution. Acetaminophen in the range of 2-20 µg/mL can be rapidly determined with a precision of 0.18%. A rate of measurements was 120-180 times per hour. The average recovery of acetaminophen was 100.5±0.37%, and the coefficient of variation was 0.67%. Results obtained by the proposed method were found to be in good agreement with those obtained by the official technique.
Acetaminophen Drugs Pharmaceutical Spectrophotometry Dissolution rate Method comparison