1.One Step PCP Test kit 2.easy to use, cut-off: 25ng/ml . 3. ... easy to use, cut-off: 25ng/ml The PCP one step PCP Test kit is a lateral flow choromatographic immunoassay for the detection ... a cut-off concentration of 25ng.ml Decription:Product name: One Step PCP urine drug testFeatures: High sensitivity, Simple, easy and ... By seaPayment: 50%in advance, the balance paid before loading. One step PCP test