Mustapha modified the PCR test by adding a dye to the test sample.

幕斯塔法对PCR检测进行了修改，给检测样本增加了一个染剂。

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Such organisms are so named because they don't pick up the purplish dye used in the test to distinguish them from gram-positive bacteria.

这类细菌之所以被如此命名是因为他们和革兰氏阳性菌相比不能吸收淡紫色的染料。

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The dye is absorbed by dead salmonella cells; thus, the PCR test can ignore the dead cells.

这个染剂会被已经死亡的沙门氏菌细胞吸收，这样P CR检测便能忽略死亡细胞。

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In my case, I was slated for a nuclear dye test, both while under stress and while resting.

FORBES: My Visit with a Cardiologist, and What You Should Know About Your Heart