别炫耀
发表于 2025-3-25 03:46:56
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reject
发表于 2025-3-25 07:40:37
Contributions to Management Sciencemovanillic acid (HVA) and vanillylmandelic acid (VMA) are important catecholamine metabolites that can be measured to provide relatively rapid laboratory diagnosis and clinical follow-up of neuroblastoma. We present a procedure to quantify HVA and VMA in urine samples which have been diluted to a cr
Instinctive
发表于 2025-3-25 15:11:12
Risk-sharing in the Pharmaceutical Industryleacetic acid (5-HIAA) is the primary urinary metabolite of serotonin, making measurement of 5-HIAA useful in the diagnosis and management of carcinoid tumors. Here we describe a simple, inexpensive, and fast method for the detection and quantification of 5-HIAA in urine. Samples are prepared by sim
Obstruction
发表于 2025-3-25 19:10:10
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frozen-shoulder
发表于 2025-3-25 22:21:52
1064-3745expertsThis updated volume provides stepwise instructions for the analysis of numerous clinically important analytes by mass spectrometry. Mass spectrometry offers clinical laboratory scientists a number of advantages including increased sensitivity and specificity, multiple component analysis, and
seroma
发表于 2025-3-26 00:44:29
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Expand
发表于 2025-3-26 07:30:08
A Simple, Fast, and Reliable LC-MS/MS Method for the Measurement of Homovanillic Acid and Vanillylmon a reverse-phase liquid chromatography column followed by detection using electrospray ionization triple quadrupole mass spectrometry (ESI-MS/MS), wherein qualifier and quantifier ion transitions are monitored. This is a simple and fast analytical method with an injection-to-injection time of 4 min.
Lasting
发表于 2025-3-26 10:26:33
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无政府主义者
发表于 2025-3-26 12:50:30
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性上瘾
发表于 2025-3-26 19:36:12
System Performance Monitoring in Clinical Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)s, largely following CLSI-C62A guidance. Though routine checks ensure the quality of results reported for each run, there is also a need to evaluate metrics between runs over time. Post-implementation performance monitoring of LC-MS/MS methods is typically focused on calibration curves, retention times, peak intensities, and ion ratios.