Thenoyltrifluoroacetone as a spectrophotometric reagent for determination of ascorbic acid

被引：0
|
作者：
Arya, SP [1 ]
Jain, P [1 ]
机构：
[1] Kurukshetra Univ, Dept Chem, Kurukshetra 136119, Haryana, India
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 2003年 / 42卷 / 10期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An extractive spectrophotometric method for the determination of microamounts of ascorbic acid is described. 1-[Thenoyl- (2')-3,3,3-trifluoro-acetone] (HTTA) is found to react with iron (111) in strongly acidic medium giving a red coloured complex. The method is based on the proportionate decrease in the colour intensity of Fe(III)-HTTA complex with the addition of ascorbic acid at 405 nm. Linear calibration curve is observed in the range 1.0-5.0 mug/mL of ascorbic acid. The molar absorptivity and Sandell's sensitivity are 5.3 x 10(4) L/mol/cm and 0.003mug/cm(2), respectively. The interference of sugars, vitamins, amino acids, mineral salts, sweetening agents etc. has been studied. The method is successfully used in the determination of ascorbic acid in pure vitamin C tablets, drops and multivitamin products.
引用
收藏
页码：2541 / 2544
页数：4
相关论文
共 50 条
  • [41] 2-(2-Thiazolylazo)-p-Cresol as a Spectrophotometric Reagent for Vanadium Determination in the Presence of Ascorbic Acid
    Teixeira, Leonardo S.G.
    Costa, A.C. Spinola
    Queiroz, Adriana S.
    Amorim, Adelaide M.M.
    Bomfim, Osvaldo N.
    Ferreira, Sérgio L.C.
    Mikrochimica Acta, 1998, 129 (01): : 103 - 106
  • [42] 2-(2-Thiazolylazo)-p-Cresol as a Spectrophotometric Reagent for Vanadium Determination in the Presence of Ascorbic Acid
    Teixeira, L. S. G.
    Spinola Costa, A. C.
    Queiroz, A. S.
    Amorim, A. M. M.
    Mikrochimica Acta, 129 (1-2):
  • [43] Rapid Potentiometric Determination of Ascorbic Acid Using Iodate as a Reagent
    Bevanda, Anita Martinovic
    Matic, Antonela
    Talic, Stanislava
    Ivankovic, Anita
    Prkic, Ante
    Paut, Andrea
    Vukusic, Tina
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2022, 17 (07):
  • [44] RAPID, SENSITIVE SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF ASCORBIC-ACID
    ELDAWY, MA
    TAWFIK, AS
    ELSHABOURI, SR
    ANALYTICAL CHEMISTRY, 1975, 47 (03) : 461 - 465
  • [45] Spectrophotometric determination of ascorbic acid using heteropolycomplex of Dawson structure
    Petrushina, G. A.
    Vishnikin, Andriy B.
    Tsiganok, Ludmila P.
    BULLETIN OF DNIPROPETROVSK UNIVERSITY-SERIES CHEMISTRY, 2008, 16 (14): : 85 - 87
  • [46] SPECTROPHOTOMETRIC DETERMINATION OF IRON(II) AS A COMPLEX WITH ASCORBIC-ACID
    MASLOWSKA, J
    OWCZAREK, A
    CHEMIA ANALITYCZNA, 1978, 23 (05): : 825 - 829
  • [47] Indirect determination of ascorbic acid (vitamin C) by spectrophotometric method
    Nejati-Yazdinejad, Massoud
    INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 2007, 42 (12): : 1402 - 1407
  • [48] A KINETIC-SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF ASCORBIC-ACID
    SANCHEZPEDRENO, C
    QUINTO, MIA
    GARCIA, MS
    RODRIGUEZ, JM
    ANALES DE QUIMICA, 1992, 88 (5-6): : 585 - 589
  • [49] Spectrophotometric determination of ascorbic acid in grapes with the Prussian Blue reaction
    Matei, Nicoleta
    Dobrinas, Simona
    Radu, Gabriel Lucian
    OVIDIUS UNIVERSITY ANNALS OF CHEMISTRY, 2012, 23 (02) : 174 - 179
  • [50] SPECTROPHOTOMETRIC DETERMINATION OF L-ASCORBIC-ACID IN VEGETABLES AND FRUITS
    BAJAJ, KL
    KAUR, G
    ANALYST, 1981, 106 (1258) : 117 - 120
12345