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Journal of chromatography. B, Analytical technologies in the biomedical and life sciences v.1072, 2018년, pp.252 - 258   SCI SCIE
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Quantification of amlodipine in dried blood spot samples by high performance liquid chromatography tandem mass spectrometry

Chen, Gaoyun (Clinical and Practice Research Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK ) ; Jirjees Sr, Feras (Clinical and Practice Research Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK ) ; Al Bawab Sr, Abdel (Clinical and Practice Research Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK ) ; McElnay Sr, James C. (Clinical and Practice Research Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK ) ;
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    Abstract A sensitive and specific method, utilising high performance liquid chromatography tandem mass spectrometry (HPLC–MS/MS) was developed for the quantitative determination of amlodipine in dried blood spot (DBS) samples. Chromatographic separation was achieved using a Waters XBridge C18 column with gradient elution of a mixture of water and acetonitrile containing 0.1% formic acid (v/v). Amlodipine was quantified using a Waters Quattro Premier mass spectrometer coupled with an electro-spray ionization (ESI) source in positive ion mode. The MRM transitions of 408.9 m / z →238.1 m / z and 408.9→294.0 m / z were used to quantify and qualify amlodipine, respectively. The method was validated across the concentration range of 0.5–30ng/mL by assessing specificity, sensitivity, linearity, precision, accuracy, recovery and matrix effect according to the Food and Drug Administration (FDA) guidelines. This method was also validated clinically within a large pharmacoepidemiological study in which amlodipine blood concentration was determined in patients who had been prescribed this medication. Highlights An HPLC–MS/MS method for determination of amlodipine in dried blood spots has been developed. This validated method proved to be sensitive and specific for amlodipine measurement. The method is being used in detecting amlodipine in patient samples in a large pharmacoepidemiology study. The method could potentially be applied in medication adherence assessment in patients prescribed amlodipine.


  • 주제어

    Amlodipine .   HPLC–MS/MS .   Dried blood spots .   Guthrie card .   Medication adherence.  

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