WebExtractor, or High-Efficiency Source (HES) CI source PCI, NCI, and EI acquisition Ion source temperature 150–350 °C Quadrupole temperature 106–200 °C Mass filter Heated monolithic hyperbolic quadrupole Scan speed 5977B Inert Plus (Extractor Source) and 5977B HES up to 20,000 5977B (SS Source) up to 12,500 u/sec Web" The Agilent 5977B GC/MS is incredibly efficient and reliable. The instrument provides defensible data, with a solid audit trail. ... Building on a long track record of innovation, the High Efficiency Source (HES) and Inert Plus Extractor EI source maximize the number of ions that are created and transferred out of the source body and into the ...
Volatile organic compounds analysis in drinking water with …
WebAug 12, 2015 · The tune showed the following numbers: H2O: 2.74% N2: 11.27% O2: 3.13% CO2: 1.12% N2/H2O: 410.89% I assumed it must be some kind of leak, because I just refitted the column into the inlet. I just found it strange that my water and other values are so low, and the nitrogen is so high. Web20% of Nitrogen is too high. It seems to be a leak in MS. You should check the side plate o-ring (the large o-ring around the MS door) with a stream of CO2 or other gas or freon. You have to... shanfu group
MSD 5975 Tune Problems - Chromatography Forum
WebMar 1, 2024 · Blister blight and small leaf spots are important alpine diseases that mainly attack tender tea leaves, affecting tea quality. However, there is limited information on the effect of these diseases on tea’s non-volatile and volatile metabolites. Metabolomic analysis based on UHPLC-Q-TOF/MS, HPLC and GC/MS was used to reveal the … WebThe Agilent 5977B GC/MSD is the latest in the series of most trusted Single Quadrupole GC/MS systems. Made for labs that focus on applications such as environmental, chemical, petrochemical, food, forensic, pharmaceutical, and material testing. Web14 hours ago · An Agilent Model 7890B-5977B GC-MS system (Agilent, Santa Clara, CA, USA) equipped with a DB-5MS capillary column (30 m×0.25 mm, 0.25 μm; J&W, Folsom, CA, USA) was used for the analysis of tea infusion volatiles. ... The high mineral contents also mainly contribute to the high conductivity in MW and TW groups, which may thereby … shan fourie