A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry
Abstract Vanillylmandelic acid (VMA) is one of the most important catecholamine metabolites, and it is usually used to aid in diagnosis of pheochromocytoma and paraganglioma. A new digital control microextraction by packed sorbent (MEPS) procedure coupled to liquid chromatography-mass spectrometry (...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-07-01
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| Series: | Journal of Analytical Science and Technology |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40543-020-00226-6 |
| _version_ | 1819088078327775232 |
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| author | Xin Xiong Yuanyuan Zhang |
| author_facet | Xin Xiong Yuanyuan Zhang |
| author_sort | Xin Xiong |
| collection | DOAJ |
| description | Abstract Vanillylmandelic acid (VMA) is one of the most important catecholamine metabolites, and it is usually used to aid in diagnosis of pheochromocytoma and paraganglioma. A new digital control microextraction by packed sorbent (MEPS) procedure coupled to liquid chromatography-mass spectrometry (LC-MS/MS) method has been developed to determine VMA in human urine. We evaluated important parameters influencing MEPS efficiency, including stationary phase, extracting cycles, and sample dilution. In optimized MEPS conditions, Only 10 μL of sample volume and 3 min preparation time for one sample were needed. Chromatographic separation was achieved with a hydrophilic interaction liquid chromatography (HILIC) column using gradient elution. VMA was detected using multiple reaction monitoring (MRM) with an electrospray source operating in negative ion mode. The method was validated for linearity, limit of quantification, accuracy, imprecision, matrix effect, and interference. Linearity was 0.5–100 μg/mL for VMA. Intra-assay, inter-assay, and total imprecision were less than 9.6%. Interferences precluding quantitation of VMA in dilute-and-shoot approach were reduced significantly using a MEPS approach. Method comparison of LC-MS/MS and homogeneous enzyme immunoassay was performed, and the reference interval was established. The developed MEPS-LC-MS/MS method certainly contributes to method robustness and makes it suitable for measurement of urinary VMA in routine clinical biochemistry laboratories. |
| first_indexed | 2024-12-21T21:46:19Z |
| format | Article |
| id | doaj.art-b2850c26c8b7418b96378eb5fb21009f |
| institution | Directory Open Access Journal |
| issn | 2093-3371 |
| language | English |
| last_indexed | 2024-12-21T21:46:19Z |
| publishDate | 2020-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Analytical Science and Technology |
| spelling | doaj.art-b2850c26c8b7418b96378eb5fb21009f2022-12-21T18:49:13ZengSpringerOpenJournal of Analytical Science and Technology2093-33712020-07-0111111410.1186/s40543-020-00226-6A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometryXin Xiong0Yuanyuan Zhang1Department of Pharmacy, Peking University Third HospitalDepartment of Pharmacy, Peking University Third HospitalAbstract Vanillylmandelic acid (VMA) is one of the most important catecholamine metabolites, and it is usually used to aid in diagnosis of pheochromocytoma and paraganglioma. A new digital control microextraction by packed sorbent (MEPS) procedure coupled to liquid chromatography-mass spectrometry (LC-MS/MS) method has been developed to determine VMA in human urine. We evaluated important parameters influencing MEPS efficiency, including stationary phase, extracting cycles, and sample dilution. In optimized MEPS conditions, Only 10 μL of sample volume and 3 min preparation time for one sample were needed. Chromatographic separation was achieved with a hydrophilic interaction liquid chromatography (HILIC) column using gradient elution. VMA was detected using multiple reaction monitoring (MRM) with an electrospray source operating in negative ion mode. The method was validated for linearity, limit of quantification, accuracy, imprecision, matrix effect, and interference. Linearity was 0.5–100 μg/mL for VMA. Intra-assay, inter-assay, and total imprecision were less than 9.6%. Interferences precluding quantitation of VMA in dilute-and-shoot approach were reduced significantly using a MEPS approach. Method comparison of LC-MS/MS and homogeneous enzyme immunoassay was performed, and the reference interval was established. The developed MEPS-LC-MS/MS method certainly contributes to method robustness and makes it suitable for measurement of urinary VMA in routine clinical biochemistry laboratories.http://link.springer.com/article/10.1186/s40543-020-00226-6Microextraction by packed sorbentVanillylmandelic acidLiquid chromatography-tandem mass spectrometryHuman urine samplesPheochromocytoma and paraganglioma |
| spellingShingle | Xin Xiong Yuanyuan Zhang A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry Journal of Analytical Science and Technology Microextraction by packed sorbent Vanillylmandelic acid Liquid chromatography-tandem mass spectrometry Human urine samples Pheochromocytoma and paraganglioma |
| title | A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry |
| title_full | A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry |
| title_fullStr | A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry |
| title_full_unstemmed | A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry |
| title_short | A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry |
| title_sort | new approach for urinary vanillylmandelic acid determination using evol microextraction by packed sorbent coupled to liquid chromatography tandem mass spectrometry |
| topic | Microextraction by packed sorbent Vanillylmandelic acid Liquid chromatography-tandem mass spectrometry Human urine samples Pheochromocytoma and paraganglioma |
| url | http://link.springer.com/article/10.1186/s40543-020-00226-6 |
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