A NEW SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF HYDRAZINE IN ENVIRONMENTAL-SAMPLES

被引：30

作者：

KAVEESHWAR, R ^{[1
]}

GUPTA, VK ^{[1
]}

机构：

[1] RAVISHANKAR UNIV,SCH STUDIES CHEM,RAIPUR 492010,MADHYA PRADESH,INDIA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1992年 / 344卷 / 03期

关键词：

D O I：

10.1007/BF00325125

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Hydrazine is determined spectrophotometrically by using veratraldehyde (3,4-dimethoxybenzaldehyde) as a new reagent. The reaction is based on the condensation of veratraldehyde with hydrazine in acidic medium. The resulting yellow coloured condensation product has maximum absorption at 410 nm. The colour system obeys Beer's law in the range of 0.065 to 0.3 mug/ml of hydrazine. Molar absorptivity and Sandell's sensitivity are found to be 6.72 x 10(4) l mol-1 cm-1 (+/- 100) and 0.0004 mug cm-2, respectively. The method is successfully applied for the determination of hydrazine in polluted water, biological samples, in isoniazide tablets and in air. It is compared with other reported spectrophotometric methods and is found to be of comparable sensitivity.

引用

页码：114 / 117

页数：4

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