SPECTROPHOTOMETRIC METHOD FOR THE ESTIMATION OF VITAMIN-C IN DRUG FORMULATIONS

被引：4
|
作者：
QURESHI, SZ
SAEED, A
HAQUE, S
RAHMAN, N
机构：
[1] Analytical Chemistry Division, Department of chemistry, Aligarh Muslim University
来源：
ANALYTICAL LETTERS | 1990年 / 23卷 / 06期
关键词：
4- dinitrobenzene spectrophotometry; Ascorbic acid determination l-chloro-2;
D O I：
10.1080/00032719008053441
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The use of l-chloro-2, 4-dinitrobenzene is described for spectrophotometric estimation of ascorbic acid. The procedure is based on the interaction of ascorbic acid with l-chloro-2, 4-dinitrobenzene in alkaline medium. The product absorbs maximally at 38Oinm, and has the molar absorptivity 0.14 x 1041 mole-1cm-1. Beer's law is obeyed in the concentration range 0.12-0.6 mg/10ml of ascorbic acid. © 1990, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码：995 / 1003
页数：9
相关论文
共 50 条
  • [21] VITAMIN-C
    PAULING, L
    SCIENCE, 1972, 177 (4055) : 1152 - &
  • [22] VITAMIN-C
    BRIDGEWATER, RJ
    CHEMISTRY IN BRITAIN, 1985, 21 (05) : 450 - 450
  • [23] VITAMIN-C
    KING, CG
    JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1950, 142 (08): : 563 - 565
  • [24] VITAMIN-C
    不详
    JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1950, 142 (12): : 955 - 955
  • [25] VITAMIN-C
    MARESCHI, JP
    ANNALES DE BIOLOGIE CLINIQUE, 1982, 40 (05) : 610 - 611
  • [26] VITAMIN-C
    不详
    BRITISH MEDICAL JOURNAL, 1948, 2 (4583): : 828 - 829
  • [27] VITAMIN-C
    LAFILLE, C
    PRODUCTS ET PROBLEMS PHARMACEUTIQUES, 1972, 27 (02): : 77 - &
  • [28] A GENERAL APPLICABLE METHOD FOR THE DETERMINATION OF VITAMIN-C
    JOHANNSEN, FH
    LANDWIRTSCHAFTLICHE FORSCHUNG, 1984, 37 (01): : 70 - 77
  • [29] NEW TITRIMETRIC METHOD FOR DETERMINATION OF VITAMIN-C
    BARAKAT, MZ
    SHEHAB, SK
    DARWISH, N
    ELZOHEIR.A
    ANALYTICAL BIOCHEMISTRY, 1973, 53 (01) : 245 - 251
  • [30] VITAMIN-C AND THE PREVENTION OF SCURVY + HISTORY OF THE USE OF VITAMIN-C
    MIROUZE
    HISTORIA, 1987, (482): : 64 - 68
12345