![]() ![]() In order to maintain control on instrumental signal drift during continuous, long-term analysis periods, the system used continuous infusion of internal standard (tuloene-d 8) into the sample stream and also provided the possibility to infuse, in the same way, an analyte for standard addition calibration. Parametric studies of the heat exchanger have been conducted in the laboratory. In order to reduce this source of inaccuracy, an in-field and online continuous monitoring system based on (MIMS) coupled with a heat exchanger and in-line standard addition was developed for monitoring volatile organic compounds (VOC) in actual field samples. Diffusion through the membrane interface is temperature dependent, and sample temperature might vary depending on the sample source. ![]() Maintaining a steady sample temperature when analyzing real-time samples in the field is crucial for Membrane Introduction Mass Spectrometry (MIMS). ![]()
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