Symmetric Atmospheric Plasma Source Integrated With Electrospray Ionization for Ambient Mass Spectrometry Detections

Chen, Chun-Yi; Weng, Lin-Kai; Chen, Kuan-Hong; Sheu, Fuu; Lin, Ching‐Chih

doi:10.1109/tps.2018.2877653

Cited by 3 publications

(4 citation statements)

References 26 publications

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“…ESI‐ and APCI‐based AIMS have been successfully deployed for direct analysis of a wide range of samples. Generally speaking, ESI‐based AIMS is useful for characterizing thermally labile, nonvolatile, and polar compounds over an extensive mass range, while APCI‐based AIMS is useful for characterizing volatile and nonpolar compounds 16–18 . Therefore, complementary information on a sample with complicated composition can be obtained through ESI‐MS and APCI‐MS analyses of the sample.…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, ambient ionization sources with various arrangements of ESI and APCI techniques have been reported. Among them, we reported the simultaneous detection of polar and nonpolar compounds using a concentric ESI+APCI dual ionization source which can be operated in ESI‐only, APCI‐only, and ESI+APCI mode 16,17 . The concentric arrangement of the ESI and APCI source was constructed by inserting a fused‐silica capillary for ESI into a stainless‐steel tube enclosed in a quartz tube.…”

Section: Introductionmentioning

confidence: 99%

“…Generally speaking, ESI-based AIMS is useful for characterizing thermally labile, nonvolatile, and polar compounds over an extensive mass range, while APCI-based AIMS is useful for characterizing volatile and nonpolar compounds. [16][17][18] Therefore, complementary information on a sample with complicated composition can be obtained through ESI-MS and APCI-MS analyses of the sample. For this reason, ambient ionization sources with various arrangements of ESI and APCI techniques have been reported.…”

mentioning

confidence: 99%

“…Among them, we reported the simultaneous detection of polar and nonpolar compounds using a concentric ESI+APCI dual ionization source which can be operated in ESI-only, APCI-only, and ESI+APCI mode. 16,17 The concentric arrangement of the ESI and APCI source was constructed by inserting a fused-silica capillary for ESI into a stainless-steel tube enclosed in a quartz tube. One end of the fused-silica capillary was attached to one arm of a three-way tee, whereas methanol solution was pumped into the second arm of the three-way tee by a syringe pump.…”

mentioning

confidence: 99%

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Thermogravimetry combined with electrospray and atmospheric pressure chemical ionization mass spectrometry for characterization of synthetic polymers

Lin

Jhang

Hung

et al. 2022

Rapid Comm Mass Spectrometry

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Rationale Thermogravimetry (TG) combined with electrospray and atmospheric chemical ionization (ESI+APCI) mass spectrometry (MS) was developed to rapidly characterize thermal decomposition products of synthetic polymers and plastic products. The ESI‐based TG‐MS method is useful for characterizing thermally labile, nonvolatile, and polar compounds over an extensive mass range; and the APCI‐based TG‐MS counterpart is useful for characterizing volatile and nonpolar compounds. Both polar and nonpolar compounds can be simultaneously detected by ESI+APCI‐based TG–MS. Methods Analytes with different volatility were produced from TG operated at different temperatures, which were delivered through a heated stainless‐steel tube to the ESI+APCI source where they reacted with the primary charged species generated from electrospray and atmospheric pressure chemical ionization (ESI+APCI) of solvent and nitrogen. The analyte ions were then detected by an ion trap mass spectrometer. Results A semi‐volatile PEG 600 standard was used as the sample and protonated and sodiated molecular ions together with adduct ions including [(PEG)n + 15]+, [(PEG)n + 18]+, and [(PEG)n + 29]+ were detected by TG‐ESI+APCI‐MS. The technique was further utilized to characterize thermal decomposition products of nonvolatile polypropylene glycol (PPG) and polystyrene (PS) standards, as well as a PS‐made water cup and coffee cup lid. The characteristic fragments of PPG and PS with mass differences of 58 and 104 between respective ion peaks were detected at the maximum decomposition temperature (Tmax). Conclusions The information obtained from the TG–ESI+APCI‐MS analysis is useful in rapidly distinguishing different types of polymers and their products. In addition, the signals of the additives in the polymer products, including antioxidants and plasticizers, were also detected before the TG temperature reached Tmax.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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