Abstract:
:An enzyme multiplied immunoassay technique (EMIT) was used to test for opiates (morphine, hydromorphone, and codeine) in extracts of blood, bile, and tissue homogenates. All immunoassay opiate positive specimens were then tested by a reversed-phase liquid chromatographic procedure using electrochemical detection (LCEC). Blood specimens were then quantitated by LCEC. The sensitivity of the immunoassay (as morphine) was 0.020 mg/L, 0.200 mg/L, and 0.100 mg/kg for blood, bile, and tissue homogenates, respectively, with 2% intrarun and 7% interrun precision. The LCEC method was linear from 0.005 to 0.300 mg/L for morphine, hydromorphone, and codeine (nalorphine internal standard) with detection limits of 0.005 mg/L for each analyte. Intrarun and interrun precision varied from 1 to 2% and 6 to 11%, respectively. Recoveries, using a double extraction technique, ranged from 70 to 95%. These two methods, applied to 495 post mortem cases, demonstrated a 6% incidence of opiates, with no false positives.
journal_name
J Anal Toxicoljournal_title
Journal of analytical toxicologyauthors
Hepler BR,Sutheimer C,Sunshine I,Sebrosky GFdoi
10.1093/jat/8.2.78subject
Has Abstractpub_date
1984-03-01 00:00:00pages
78-90issue
2eissn
0146-4760issn
1945-2403journal_volume
8pub_type
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