Yes for the most part, mass spectrometry can detect the metabolites of most steriods, but not all.
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send you for a UA (urinalysis) within 24 hrs from offer of employment.
Similar to a blood-glucose home test, a PKU patient pricks his or her finger and then places a drop of blood on the reagent strip inserted in the testing device. Phenylalanine in the blood causes a...
Place it next to another known mass and measure the gravitational attraction force between them (all right, it's not practical, but it WOULD work!)