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Rapid and sensitive quantitation of morphine using HPLC with electrochemical detection
S O Mashayekhi1, M Ghandforoush-Sattari, R D W Hain
1Faculty of Pharmacy and Drug Applied Research Center, Hematology & Oncology Research Centre, NPMC, Tabriz University of Medical Sciences, Tabriz, Iran. mashayekhis@yahoo.co.uk
Background:
Morphine is one of the most widely used opioid analgesics for controlling pain in cancer and post-operative patients.
Objective:
This study aimed at finding a sensitive method for measuring morphine.
Method:
A one-step solid phase extraction was developed for extracting morphine from various samples, and morphine concentration was measured using a high-performance liquid chromatographic system with electrochemical detection. The sensitivity of the assay was 1.53 ng/mL with a recovery of 93.4% +/- 0.01. The mean intra-assay and inter-assay test for three concentrations was 10.54 and 7.47, respectively. The assay showed no cross-reaction with a wide range of compounds.
Conclusion:
This method for morphine in small biological samples is easy, sensitive and reproducible with low cross-reactivity.
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