Residual solvent analysis with hyper-fast gas chromatography-mass spectrometry and a liquid carbon dioxide cryofocusing in less than 90 s.
Residual solvent analysis with hyper-fast gas chromatography-mass spectrometry and a liquid carbon dioxide cryofocusing in less than 90 s.
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使用超快速气相色谱-质谱法和液态二氧化碳冷冻聚焦在不到 90 秒的时间内进行残留溶剂分析
DOI:
10.1016/j.chroma.2021.462179
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Boeker
中科院分区:
文献类型:
--
作者:
Chopra;Miriam D;Müller;Peter J;Leppert;Matthias;Boeker
A new hyper-fast gas chromatography method with less than 90 s runtime including the column cool down was developed for the analysis of four gases and 16 residual solvents, combining a CO 2 cryofocusing with a flow-field thermal gradient gas chromatograph (FF-TG-GC) and ToF-MS. The extremely low analysis time can be achieved by combining the new FF-TG-GC and a very short Rxi-624 Sil MS separation column with a small inner diameter and small film thickness (2.05 m× 0.1 mm× 1.0 µm). The column is inserted into a low thermal mass, resistively heated stainless steel capillary. This enables fast temperature programs with heating rates up to 3000° C/min and a column cool down within a few seconds. In addition to temporal temperature gradients, the FF-TG-GC can generate a spatial temperature gradient that leads to an improved peak shape. Further, an external liquid CO 2 cryo-trap was designed in order to reduce the injection bandwidths of analytes and to take full advantage of the resolving power of the separation column. No modifications are required to the FF-TG-GC for the use of the cryogenic trap, as the cooled spot is heated by the resistively heated stainless steel capillary during the temperature program. With cryofocusing, analyzed residual solvents are baseline separated. R 2 values over 0.99 for calibration curves and low relative standard deviations (mainly< 3%) for repeatability tests were obtained.
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影响因子:
7.4
作者:
Leppert;Härtel;Martin;Klapötke;Thomas M;Boeker
通讯作者:
Boeker
DOI:
10.1016/j.chroma.2021.461943
发表时间:
2021
期刊:
Journal of chromatography. A
影响因子:
--
作者:
Leppert;Blumberg;Leonid M;Matthias;Boeker
通讯作者:
Boeker
DOI:
10.1002/jhrc.1240091007
发表时间:
1986
期刊:
Hrc-journal of High Resolution Chromatography
影响因子:
--
作者:
P. Matuška;M. Koval;W. Seiler
通讯作者:
W. Seiler
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Audrius Sadaunykas;Audrius Zolumskis;Audrius Markevičius;E. Naujalis
通讯作者:
E. Naujalis
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
Ted K. Chen;J. G. Phillips;William Durr
通讯作者:
William Durr