Determination of Paraquat Adsorbability to Four field Soils of Guangxi Province by High Performance Liquid Chromatography Method
10.3870/yydb.2015.07.026
- VernacularTitle:高效液相色谱法测定广西4类土壤对百草枯的吸附力
- Author:
Hua LU
;
Zong NING
;
Daohai CHENG
;
Ying QIU
;
Junjie HUANG
- Publication Type:Journal Article
- Keywords:
Paraquat;
Chromatography,high performance liquid;
Adsorbability;
Soil
- From:
Herald of Medicine
2015;(7):938-941
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study paraquat adsorbability of different field soils in Guangxi province of China. Methods HPLC method was adopted to measure the peak area of paraquat in three different media of four types of soils. Chromatographic column was Kromasil C18 column (4. 6 mm×200 mm, 5 μm); mobile phase was acetonitrile-water (including 0. 03 mol·L-1 sodium heptanesulfonate and 0. 24 mol·L-1 phosphoric acid) at a ratio of 397 (pH adjusted to 2. 0 by triethylamine). Detection wave length was 258 nm; column temperature was 25 ℃; the injection volume was 20 μL; flow rate was 0. 8 mL·min-1 . The peak areas of paraquat before and after being adsorbed were compared to calculate the adsorption rate of paraquat in different soils. Results All tested soil samples possessed the adsorption rate of paraquat over 99. 0%. Conclusion Four common field soils in Guangxi province can be used as temporary effective absorbents for the first-aid of paraquat poisoning.
