Kim, Hohyun
(Department of Pharmacokinetics, Seoul Medical Science Institute, Seoul Clinical Laboratories (SCL), 7-14, Dongbinggo-dong, Yongsan-gu, Seoul 140-809, South Korea)
,
Roh, Hyeongjin
(Department of Drug Development Service, BioCore Co. Ltd., Seoul 137-130, South Korea)
,
Lee, Hee Joo
(Department of Pharmacokinetics, Seoul Medical Science Institute, Seoul Clinical Laboratories (SCL), 7-14, Dongbinggo-dong, Yongsan-gu, Seoul 140-809, South Korea)
,
Chung, Soo Youn
(Division of Bioequivalence, Department of Drugs National Institute of Toxicological Research, Korea Food and Drug Administration, Seoul 122-704, South Korea)
,
Choi, Sun Ok
(Division of Bioequivalence, Department of Drugs National Institute of Toxicological Research, Korea Food and Drug Administration, Seoul 122-704, South Korea)
,
Lee, Kyung Ryul
(Department of Pharmacokinetics, Seoul Medical Science Institute, Seoul Clinical Laboratories (SCL), 7-14, Dongbinggo-dong, Yongsan-gu, Seoul 140-809, South Korea)
,
Han, Sang Beom
(Department of Pharmacokinetics, Seoul Medical Science Institute, Seoul Clinical Laboratories (SCL), 7-1)
AbstractA sensitive and selective liquid chromatographic method coupled with mass spectrometry (LC–MS) was developed for the quantification of phloroglucinol in human plasma. Resorcinol was used as internal standard, with plasma samples extracted using ethyl acetate. A centrifuged upper layer...
AbstractA sensitive and selective liquid chromatographic method coupled with mass spectrometry (LC–MS) was developed for the quantification of phloroglucinol in human plasma. Resorcinol was used as internal standard, with plasma samples extracted using ethyl acetate. A centrifuged upper layer was then evaporated and reconstituted with mobile phase. The reconstituted samples were injected into a C18 XTerra MS column (2.1×100 mm) with 3.5-μm particle size. The analytical column lasted for at least 500 injections. The mobile phase was 15% acetonitrile (pH 3.0), with flow-rate at 200 μl/min. The mass spectrometer was operated in negative ion mode with selective ion monitoring (SIM). Phloroglucinol was detected without severe interferences from plasma matrix when used negative ion mode. Phloroglucinol produced a parent molecule ([M–H]−) at m/z 125 in negative ion mode. Detection of phloroglucinol in human plasma was accurate and precise, with quantification limit at 5 ng/ml. This method has been successfully applied to a study of phloroglucinol in human specimens.
AbstractA sensitive and selective liquid chromatographic method coupled with mass spectrometry (LC–MS) was developed for the quantification of phloroglucinol in human plasma. Resorcinol was used as internal standard, with plasma samples extracted using ethyl acetate. A centrifuged upper layer was then evaporated and reconstituted with mobile phase. The reconstituted samples were injected into a C18 XTerra MS column (2.1×100 mm) with 3.5-μm particle size. The analytical column lasted for at least 500 injections. The mobile phase was 15% acetonitrile (pH 3.0), with flow-rate at 200 μl/min. The mass spectrometer was operated in negative ion mode with selective ion monitoring (SIM). Phloroglucinol was detected without severe interferences from plasma matrix when used negative ion mode. Phloroglucinol produced a parent molecule ([M–H]−) at m/z 125 in negative ion mode. Detection of phloroglucinol in human plasma was accurate and precise, with quantification limit at 5 ng/ml. This method has been successfully applied to a study of phloroglucinol in human specimens.
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