结果表明，对不同氘丰度的气体样品，单次测定的相对标准偏差好于0 2 % ，氘丰度测量值在0 2 %的误差范围内是可信的。
The results indicate:relative standard deviations are better than 0.2% for gas samples of different deuterium abundance. Measure value is believable in the error range of 0.2%.
采用HPLC - MS测定人血浆中阿折地平浓度，并计算单次及多次给药后的药动学参数。
The azelnidipine concentration in plasma was determined by HPLC-MS and the pharmacokinetic parameters were calculated.
方法测定中性磷霉素钠与顺铂合并单次静注后小白鼠生存天数，LD50；
METHODS Establish combination of neutral sodium phosphonomycin and cisplatin to be administered by single IV injection. The living days of the mouse are LD50.
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