Rapid and sensitive semi-quantitative determination of paraquat using silica gel or florisil minicolumn.
نویسندگان
چکیده
منابع مشابه
Sensitive spectrophotometric determination of phosphate using silica-gel collectors.
Phosphate, 3 - 10 nmol, in 1 dm3 of natural-water samples was quantitatively collected along with 10 micromol of Fe(III) ion onto a silica-gel collector in the pH range of 5.4 - 6.2. The amount of Fe(III) ion needed was limited to such a low level that the Pyrocatechol Violet method could be applied without removing the Fe(III) ion, providing a superior determination method for phosphate. Surfa...
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A rapid and sensitive HPLC method for the simultaneous determination of paraquat and diquat in human serum has been developed. After deproteinization of the serum with 10% trichloroacetic acid, the samples were separated on a reversed-phase column, and subsequently reduced to their radicals with alkaline sodium hydrosulfite solution. These radicals were monitored with a UV detector at 391 nm. T...
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ژورنال
عنوان ژورنال: Eisei kagaku
سال: 1987
ISSN: 0013-273X
DOI: 10.1248/jhs1956.33.106