A solvent extraction procedure for the spectrophotometric determination of iron(III) with bithionol

1969 ◽  
Vol 47 (1) ◽  
pp. 151-153 ◽  
Author(s):  
A.G. Fogg ◽  
A. Gray ◽  
D.Thorburn Burns
Keyword(s):  
Solvent Extraction ◽  
Spectrophotometric Determination ◽  
Extraction Procedure

Examination of Conditions for the Determination of Carbamate Pesticides in Soils

1992 ◽  
Vol 57 (8) ◽  
pp. 1632-1638 ◽  
Author(s):  
Věra Tatarkovičová ◽  
Zdeněk Stránský
Keyword(s):  
Activated Carbon ◽  
Solvent Extraction ◽  
Soil Type ◽  
Extraction Procedure ◽  
Purification Procedure ◽  
Factors Affecting ◽  
Carbamate Pesticides ◽  
Rp Hplc ◽  
Extracting Solvent

The procedure for the determination of carbamate pesticides in soil was optimized. The following factors affecting the final results were investigated: extracting solvent, extraction procedure, extract purification procedure, and soil type. Triple extraction with acetone and purification of the extract on a two-stage purification column containing an activated carbon-silica gel 1+1 mixture were found optimal. The extracts after treatment were analyzed by RP-HPLC with UV detection. The method developed allows carbamate pesticides in soil to be determined at concentrations in excess of 30 μg kg-1.

scholarly journals A New Spectrophotometric Determination of Nitrate Ion by Solvent Extraction

1968 ◽  
Vol 89 (4) ◽  
pp. 399-404 ◽  
Author(s):  
Yuroku YAMAMOTO ◽  
Nobuko OKAMOTO ◽  
Eiji TAO
Keyword(s):  
Solvent Extraction ◽  
Spectrophotometric Determination ◽  
Nitrate Ion

Solvent extraction-spectrophotometric determination of boron in steel with 2,4-dinitronaphthalene-1,8-diol and Brilliant Green

The Analyst ◽  
1981 ◽  
Vol 106 (1264) ◽  
pp. 776-781 ◽  
Author(s):  
Kyoji Tôei ◽  
Shoji Motomizu ◽  
Mitsuko Oshima ◽  
Hideki Watari
Keyword(s):  
Solvent Extraction ◽  
Spectrophotometric Determination ◽  
Brilliant Green
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