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. 2016 Sep 20;40(8):583–587. doi: 10.1093/jat/bkw080

Table III:

Comparison of Lin-Zhi HEIA utilizing the 100 ng/mL cutoffs with UPLC-MS/MS results for hydrocodone and hydromorphone.

Hydrocodone 100 ng/mL cutoff
+
UPLC-MS/MS + 214 9
123 675