In one aspect, a method for {TAIL ~ rapid analysis} of charged metabolites or {HEAD ~ metabolites} that contain, or may be induced to contain, a charge through the generation of suites of analyte matrix interactions that enable the performance of high throughput metabolomics without the use of chromatography is provided 
In one aspect , a method for { TAIL ~ rapid analysis } of charged metabolites or { HEAD ~ metabolites } that contain , or may be induced to contain , a charge through the generation of suites of analyte matrix interactions that enable the performance of high throughput metabolomics without the use of chromatography is provided
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