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 Yaoxue Zazhi

  • Publisher: Wanfang Data
  • FAD Code: ZGYZ
  • CODEN: ZYZAEU
  • ISSN: 1001-2494
  • Abbreviation: Zhongguo Yaoxue Zazhi
  • DOI Prefix: 10.3321/j.issn:1001-2494
  • Other Name(s): Chinese Pharmaceutical Journal
  • Language: Chinese
  • Comments: Fulltext from 1998 V33

Citations 2

"Hydride Generation-atomic Absorption Spectrometry For Determination Of Trace Lead, Arsenic And Mercury In Beneficial Traditional Chinese Medicines"
Zhongguo Yaoxue Zazhi 2004 Volume 39, Issue 4 Pages 296-297
Zhang Huifun, Zhao Chunjie, Yu Jin, Pan Qiang

Abstract: OBJECTIVE: To develop a method for the determination of trace lead, arsenic and mercury in five kinds of beneficial traditional Chinese medicines. METHODS: The contents of the three trace elements were determined by flow injection hydride generation-atomic absorption spectrometry. RESULTS: The linear ranges were 0.00 - 20.00 µg kg-1. The relative standard deviations were less than 0.51% and the recoveries were 91%-108%. CONCLUSION: This method is simple, rapid and has been applied to the determination of trace lead, arsenic and mercury with satisfactory results.

"Determination Of Vitamin B12 By Chemiluminescence Analysis"
Zhongguo Yaoxue Zazhi 1989 Volume 24, Issue 10 Pages 611-611
Zhou YK, Li H, Liu Y

Abstract: Flow injection chemiluminescence analysis was used for determining cyanocobalamin (I), by injection of a 50 µL sample in 0.1 M HCl into a carrier stream (3 mL min-1), which was then mixed with reagent streams (each 2 mL min-1) of 30 mM luminol in carbonate buffer (pH 10.8) and of 40 mM H2O2. The calibration graph was rectilinear from 5 µg to 1 ng. The detection limit was 10 ppb. Mean recovery (n = 5) was 98.7%, with a coefficient of variation of 3.0%. Results for I in injection solution agreed well with those obtained by the Ch. P. colorimetric method. The method is suitable for clinical drug analysis.
Drugs Vitamin B12 Cyanocobalamin Pharmaceutical Chemiluminescence Method comparison Buffer