SPECTROPHOTOMETRIC DETERMINATION OF TRACE IRON AFTER COLLECTION AND ELUTION AS ITS 8-HYDROXYQUINOLINE-5-SULFONATE CHELATE ON PROTONATED CHITIN

被引:12
作者
HOSHI, S [1 ]
TOMIZUKA, T [1 ]
ENJO, C [1 ]
HAGA, Y [1 ]
UTO, M [1 ]
AKATSUKA, K [1 ]
机构
[1] KITAMI INST TECHNOL,DEPT FUNCT MAT,KITAMI,HOKKAIDO 090,JAPAN
关键词
PRECONCENTRATION; SPECTROPHOTOMETRIC DETERMINATION; IRON; IRON(III)-5-HYDROXYQUINOLINE-5-SULFONATE CHELATE; PROTONATED CHITIN;
D O I
10.2116/analsci.11.729
中图分类号
O65 [分析化学];
学科分类号
070302 [分析化学]; 081704 [应用化学];
摘要
A collection and elution method for anionic metal chelate on protonated chitin has been applied to the spectrophotometric determination of iron. Iron is collected as its anionic 8-hydroxyquinoline-5-sulfonate (8-HQ-5-S) chelate on a column of chitin in weak acidic medium. The iron(III)-8-HQ-5-S chelate collected on the chitin is effectively eluted with a small volume of 0.1 mol dm(-3) ammonia buffer solution (pH 9), and the absorbance of the eluent is measured at 571 nm. Beer's law is obeyed over the concentration range of 0.5 to 5 mu g of iron in 1 cm(3) of the eluent. Some metal ions and common inorganic anions do not interfere in concentration range of 100 to 1000 times that of iron, but the tolerance limit for Co, Ni and Cu is low due to the competitive reaction with 8-HQ-5-S. The present method can be applied to the determination of iron in tap and spring water samples.
引用
收藏
页码:729 / 732
页数:4
相关论文
共 10 条
[1]
PRECONCENTRATION OF TRACE-METALS WITH DITHIOCARBAMATE-CHITIN [J].
HASE, A ;
KAWABATA, T ;
TERADA, K .
ANALYTICAL SCIENCES, 1990, 6 (05) :747-751
[2]
SIMPLE AND RAPID SPECTROPHOTOMETRIC DETERMINATION OF TRACE PHOSPHATE WITH PRECONCENTRATION OF PHOSPHOMOLYBDENUM BLUE ANION ON PROTONATED CHITIN [J].
HOSHI, S ;
KANAGAMI, S ;
UTO, M ;
MATSUBARA, M .
ANALYTICAL SCIENCES, 1992, 8 (01) :103-106
[3]
SIMPLE AND RAPID SPECTROPHOTOMETRIC DETERMINATION OF IRON AFTER PRECONCENTRATION AS ITS 1,10-PHENANTHROLINE COMPLEX ON THE NATURAL POLYMER CHITIN [J].
HOSHI, S ;
YAMADA, M ;
INOUE, S ;
MATSUBARA, M .
TALANTA, 1989, 36 (05) :606-608
[4]
PRECONCENTRATION OF COLORED METAL-COMPLEXES ON A NATURAL POLYMER CHITIN AND ITS APPLICATION TO SPECTROPHOTOMETRIC DETERMINATION OF METAL-IONS [J].
HOSHI, S ;
KAMADA, Y ;
INOUE, S ;
MATSUBARA, M .
ANALYTICAL SCIENCES, 1988, 4 (02) :227-228
[5]
SPECTROPHOTOMETRIC DETERMINATION OF BISMUTH AFTER COLLECTION AND ELUTION OF ITS THIOUREA COMPLEX ON CHITIN [J].
HOSHI, S ;
NOTOYA, N ;
UTO, M ;
MATSUBARA, M .
ANALYTICAL SCIENCES, 1991, 7 (04) :657-660
[6]
SPECTROPHOTOMETRIC DETERMINATION OF TRACE COPPER AFTER ADSORPTION AND ELUTION OF NEOCUPROINE COMPLEX ON CHITIN [J].
HOSHI, S ;
TANAKA, Y ;
INOUE, S ;
MATSUBARA, M .
ANALYTICAL SCIENCES, 1989, 5 (04) :471-474
[7]
KOMORI K, 1986, BUNSEKI KAGAKU, V35, P890
[8]
MINAMISAWA H, 1993, BUNSEKI KAGAKU, V42, P767
[9]
ATOMIC ADSORPTION SPECTROPHOTOMETRY OF COBALT AFTER PRECONCENTRATION AS NITROSO-R SALT COMPLEX ON CHITIN [J].
MINAMISAWA, H ;
HOKAZONO, T ;
ARAI, N ;
OKUTANI, T .
NIPPON KAGAKU KAISHI, 1993, (08) :937-942
[10]
YOTSUYANAGI Y, 1969, BUNSEKI KAGAKU, V18, P477