title: Stepped MS(All) Relied Transition (SMART): An approach to rapidly determine optimal multiple reaction monitoring mass spectrometry parameters for small molecules.
abstract: Multiple reaction monitoring (MRM) is a universal approach for quantitative analysis because of its high specificity and sensitivity. Nevertheless, optimization of MRM parameters remains as a time and labor-intensive task particularly in multiplexed quantitative analysis of small molecules in complex mixtures. In this study, we have developed an approach named Stepped MS(All) Relied Transition (SMART) to predict the optimal MRM parameters of small molecules. SMART requires firstly a rapid and high-throughput analysis of samples using a Stepped MS(All) technique (sMS(All)) on a Q-TOF, which consists of serial MS(All) events acquired from low CE to gradually stepped-up CE values in a cycle. The optimal CE values can then be determined by comparing the extracted ion chromatograms for the ion pairs of interest among serial scans. The SMART-predicted parameters were found to agree well with the parameters optimized on a triple quadrupole from the same vendor using a mixture of standards. The parameters optimized on a triple quadrupole from a different vendor was also employed for comparison, and found to be linearly correlated with the SMART-predicted parameters, suggesting the potential applications of the SMART approach among different instrumental platforms. This approach was further validated by applying to simultaneous quantification of 31 herbal components in the plasma of rats treated with a herbal prescription. Because the sMS(All) acquisition can be accomplished in a single run for multiple components independent of standards, the SMART approach are expected to find its wide application in the multiplexed quantitative analysis of complex mixtures.
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Ye
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Zhu
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Huiying
authors.initials: H
authors.lastname: Liu
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Mengqiu
authors.initials: M
authors.lastname: Wu
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China.
authors.forename: Guangji
authors.initials: G
authors.lastname: Wang
authors.affiliation: Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang #24, Nanjing 210009, China. Electronic address: hhp_770505@hotmail.com.
authors.forename: Haiping
authors.initials: H
authors.lastname: Hao
mesh_terms: D000818:Animals; D005260:Female; D029001:Herbal Medicine; D057230:Limit of Detection; D013058:Mass Spectrometry / Q000379:methods*; D010599:Pharmacokinetics; D051381:Rats; D017207:Rats, Sprague-Dawley
keywords: Complex mixture; Multiple reaction monitoring (MRM); Q-TOF; Quantitative analysis; Stepped MS(All); Stepped MS(All) Relied Transition (SMART)