RAPID SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF PHENOL

被引：0
|
作者：
NAGARAJ, P [1 ]
BHANDARI, JM [1 ]
ACHAR, BN [1 ]
机构：
[1] MANASAGANGOTRI,DEPT STUDIES CHEM,MYSORE 570006,INDIA
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 1993年 / 32卷 / 07期
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D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new spectrophotometric method is developed for the determination of trace amounts of phenol. The method is based on the blue coloured reaction between phenol, sodium nitroprusside and hydroxylamine in a buffer medium of pH range 10.26-11.46. The blue species exhibits maximum absorbance at 700 nm. Beer's law is valid over the concentration range 0.1-6.5 ppm. The molar absorptivity is 1.68 x 10(4) l mol-1 cm-1 and Sandell sensitivity is 0.0052 mug phenol/cm2. The effects of pH, time, order of addition of reagents, temperature, reagents' concentration and diverse ions are reported,
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页码：641 / 643
页数：3
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