Gas chromatographic determination of systemic fungicide tricyclazole in soil and water.
A method is described for determination of tricyclazole residues in soil and water. Tricyclazole is extracted from soil by refluxing with ethyl acetate-acetone (80 + 20 v/v) and from water by partitioning into dichloromethane. The soil extract is purified by coagulation. The compound is detected and measured by gas chromatography using a flame photometer operated in the sulfur mode. Detection limits are 8 ppb for soil and 0.8 ppb for water. Recoveries for control samples fortified with tricyclazole at 0.1-5.0 ppm averaged 97.1% for soil and 108.1% for water.
Xiao
Y X
YX
Zhejiang Agricultural University, Department of Plant Protection, Hangzhou, China.
Fan
D F
DF
Chen
H X
HX
D002849:Chromatography, Gas; D005659:Fungicides, Industrial / Q000032:analysis*; D007202:Indicators and Reagents; D008752:Methylene Chloride; D010573:Pesticide Residues / Q000032:analysis*; D010783:Photometry; D012987:Soil / Q000032:analysis*; D013844:Thiazoles / Q000032:analysis*; D014867:Water / Q000032:analysis*
D005659:Fungicides, Industrial; D007202:Indicators and Reagents; D010573:Pesticide Residues; D012987:Soil; D013844:Thiazoles; D014867:Water; D008752:Methylene Chloride; C041191:tricyclazole