In the case of measuring the contents of volatile phenols in water by using 4 - AAP spectrophotometry, the purification of 4 - AAP has great influence on the test results.
用4-氨基安替比林（4-AAP）分光光度法测定水中挥发酚类含量时，4-AAP药品纯度对试验结果的影响很大。
In the case of measuring the contents of volatile phenols in water by using 4 - AAP spectrophotometry, the purification of 4 - AAP has great influence on the test results.
用4-氨基安替比林（4-AAP）分光光度法测定水中挥发酚类含量时，4-AAP药品纯度对试验结果的影响很大。
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