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題 名 | Interference of Selected Clinical Medicines on DRI[feb9] and TDx[feb9] Immunoassays of Morphine and Methamphetamine in Urine=探討醫療藥物影響DRI[feb9]及TDx[feb9]免疫試劑檢測尿中嗎啡及甲基安非他命 |
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作 者 | 張秀圭; 簡俊生; 李宏謨; 陳朝洋; | 書刊名 | 藥物食品分析 |
卷 期 | 7:4 1999.12[民88.12] |
頁 次 | 頁259-268 |
分類號 | 418.81 |
關鍵詞 | 免疫分析; 嗎啡; 甲基安非他命; 干擾; 體外試驗; Immunoassay; Morphine; Methamphetamine; Interference; In vitro; |
語 文 | 英文(English) |
英文摘要 | Eleven commonly used antihistamines, nonsteroidal anti-inflammatory drugs, and vitamins were evaluated in vitro for potential interference with DRIR and TDxR immunoassay reagents for opiates and amphetamines. Mechanisms for the observed interference were also explored. DRIR reagents appear to be more susceptible to interference by the compounds studied. Regarding mechanistic aspects, tolmetin was found to be strongly absorbent at the detection wavelength (340 nm) causing a false negative response; diphenhydramine, pheniramine, and trimethobenzamide appeared to cause false positive interference through their affinity to the antibodies used in the DRIR reagents; while chlorpromazine was found to positively interfere with the assay through both cross reaction and UV absorption. Ascorbic acid, when in high concentrations (>2%, w/v), may inhibit the enzyme (G6PDH) activity and result in a false negative response. |
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