如果要测量血浆中内毒素的实际值，则应同时使用加标样品和未加标样品。
If the actual value of endotoxin in plasma would be measured, both the spiked and unspiked samples should be used.
该方法被用于分析实际样品并做加标回收实验，得到令人满意的结果。
To further verify the viability of the method, recovery experiments were carried out, the results were satisfactory.
该法用于糖蜜酒精废液中有机酸的测定，结果令人满意，9种有机酸的样品加标回收率均在93%以上。
The recoveries of acid standards were above 93%. The method can be applied to(determine) the organic acids in cane vinasse with satisfactory results.
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