针式微萃取结合GC-IRMS测定水溶液中甲酸、乙酸的稳定碳同位素组成
2.2.1. GC-C-IRMS The δ13C values of caffeine were determined with a Delta V Advantage Isotope Ratio Mass Spectrometer (IRMS) system (Thermo Fisher Scientific, Bremen, Germany) coupled to a Trace GC Ultra Gas Chromatograph via a GC-C/TC III interface operating in the “Combustion” (C)...
额定接通能力 [Irms] 40 A 400 V AC 适用电源回路 符合 IEC 61095 额定分断能力 40 A 400 V 适用电源回路 符合 IEC 61095 额定短时耐受电流 [Icw] 128 A <= 40 °C 10 s 电源回路 40 A <= 40 °C 30 s 电源回路 与继电器配合使用的熔丝 16 A gL <= 440 V 适用电源回路 ...
It is important that the equivalent IRMS value be established when calculating permissible operating levels. (Power dissipation calculated using derating factor (see paragraph 4)). 6. 6.1 Attachment: Soldering: capacitors can be attached by conventional soldering techniques: vapor phase, convection ...
It is important that the equivalent IRMS value be established when calculating permissible operating levels. (Power dissipation calculated using derating factor (see paragraph 4)). 6. 6.1 Attachment: Soldering: capacitors can be attached by conventional soldering techniques: vapor phase, convection ...
To advance isotope ratio analysis of an additional element, we present compound-specific 15N/14N analysis of glyphosate and AMPA by a two step derivatization in combination with gas chromatography/isotope ratio mass spectrometry (GC/IRMS). The N-H group was derivatized with isopropyl chloroformate ...
It is important that the equivalent IRMS value be established when calculating permissible operating levels. (Power dissipation calculated using derating factor (see paragraph 4)). 6. 6.1 Attachment: Soldering: capacitors can be attached by conventional soldering techniques: vapor phase, convection ...
It is important that the equivalent IRMS value be established when calculating permissible operating levels. (Power dissipation calculated using derating factor (see paragraph 4)). 6. 6.1 Attachment: Soldering: capacitors can be attached by conventional soldering techniques: vapor phase, convection ...
It is important that the equivalent IRMS value be established when calculating permissible operating levels. (Power dissipation calculated using derating factor (see paragraph 4)). 6. 6.1 Attachment: Soldering: capacitors can be attached by conventional soldering techniques: vapor phase, convection ...
It is important that the equivalent IRMS value be established when calculating permissible operating levels. (Power dissipation calculated using derating factor (see paragraph 4)). 6. 6.1 Attachment: Soldering: capacitors can be attached by conventional soldering techniques: vapor phase, convection ...