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DETERMINATION OF CONCENTRATIONS AND AMOUNTS OF PERFLUOROALKYL SUBSTANCES BY LC/MS/MS
DETERMINATION OF CONCENTRATIONS AND AMOUNTS OF PERFLUOROALKYL SUBSTANCES BY LC/MS/MS
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机译:通过LC / MS / MS测定全氟烷基物质的浓度和量
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摘要
A method and system for injecting an unconcentrated sample into a receiving LC/MS/MS system that is configured to determine a concentration of one or more PFAS analytes within the unconcentrated sample, wherein the LC/MS/MS includes ESI. The unconcentrated sample is subjected to the following ESI conditions: i) a probe gas temperature of approximately 120° C. to approximately 180° C.; ii) a sheath gas heater setting of approximately 250° C. to approximately 400° C.; and iii) a sheath gas flow of approximately 8 L/min to approximately 12 L/min. The unconcentrated sample's concentration and/or an injected amount of the one or more PFAS analytes is determined.
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机译:一种方法和系统,用于将非康复的样品注入接收LC / MS / MS系统,该系统被配置为确定非浓度样本内的一个或多个PFA分析物的浓度,其中LC / MS / MS包括ESI。将无浓度的样品进行以下ESI条件:i)探针气体温度约为120℃至约180℃。 ii)大约250℃的鞘气体加热器设定为约400°C。和III)鞘气流约为8升/分钟至约12L / min。确定不均匀的样品的浓度和/或一种或多种PFAS分析物的注射量。
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