The standard deviations of tribenuron-methyl and MCPA-Na was 0. 014 and 0. 059, the variation coefficients are 1.7% and 0. 26% , and the recoveries are is 99. 5% and 98. 6% respectively.

• 结果表明；该法简便、快捷、准确；苯磺隆和2甲4氯钠的相对标准偏差分别为0.；014和0