摘要
提出了用高效液相色谱法同时测定土壤中莠去津、氰草津残留量的方法。用甲醇／乙腈提取，石油醚脱脂，中性氧化铝小柱净化，最后用Ｎｏｖａ－ＰａｋＣ１６柱进行ＨＰＬＣ分析，流动相：甲醇－水（５５＋４５），吸收波长 ２２８ ｎｍ，流速０． ７ ｍＬ／ｍｉｎ．莠去津最低检出限为 ０．３ ｎｇ，氰草津为０．２ ｎｇ。回收率分别为莠去津８３．４％～１０２．３％，氰草津 ８２．４％～９３．５％．
A method for the simultaneous determination of residue of atrazine and cyanazine in soil is reported. The sample was extracted with acetonitrile-methanol system and de fatted with petroleum ether. Then after it passed through an Al2O3 column, the sample can be separated on a Nova-Pah C18, column using a mobile phase of methanol-water(55: 45,V/V) and determined with an ultraviolet detector at 228 um. The detection limit were 0. 3 ng for a trazine and 0. 2 ng for cyanazine. Recoveries were 83. 4%-102. 3% for atrazine and 82. 4% -93. 5% for cyanazine.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1998年第5期571-573,共3页
Chinese Journal of Analytical Chemistry
关键词
残留
莠去津
氰草津
HPLC
测定
分析
High performance liquid chromatograpy, atrazine, cyanazine
