Nov 12, 2020 · A number of methods for the analysis of cannabinoids in cannabis have indeed already been developed; among various approaches, the predominant is chromatographic analysis, in particular using gas chromatography (GC) [11,12,13,14,15,16,17,18] or high performance liquid chromatography (HPLC) [16,19,20,21,22,23,24,25,26,27].
Jan 17, 2022 · A Restek LPGC column kit (PN: 11800), GC inlet liners (PN: 23303), septa (PN: 23865), and caps and vials (PNs: 24385 and 21175) were used for all experiments. 2.2 Instrumentation. A JEOL JMS-TQ4000GC triple-quadrupole GC–MS/MS equipped with an Aijiren B GC was used for all measurements.
Screw Thread Autosampler Vials. 9 mm wide mouth screw thread vials are our recommended screw thread vial for most HPLC applications. These autosampler vials have a 40% wider openeing than 8-425 thread vials, which simplifies pipetting and other routine functions without sacrificing autosampler compatibilty.
HPLC and UHPLC Low-Pressure GC-MS (LPGC-MS) Packed & Micropacked Columns
Aug 30, 2021 · Approximately 0.05 g of each fryer oil sample was passed through a 0.45 µm nylon filter into a 1.5 mL HPLC sample vial. To the filtered oil was added 1.0 mL of tetrahydrofuran (HPLC grade, Fisher, USA). An isocratic normal phase HPLC method was used with tetrahydrofuran as the mobile phase and a flow rate of 1.0 mL/min.
Apr 01, 2014 · An Rtx-624, 30 m, 0.32 mm id, 1.8 µm column from Thames Restek (Buckinghamshire, UK) was used, and a 2.5-μL injection was made with an injection port temperature of 220°C and a column temperature of 40°C.
Apr 22, 2017 · The chromatography was performed in a Restek Pinnacle II C18 5 µm 100 mm × 2.1 mm under isocratic condition with a mobile phase comprising 20 mmol/L NH 4 Ac/MeOH 30:70 (v/v) at a flux of 0.2 mL/min. The injected volume was 10 µL.
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16. Sonicate the vial for 30 minutes. 17. Remove the Twister. 18. Dilute 100 μL of the acetonitrile from the Twister back extraction with 900 μL of deionized water. 19. Inject 2 μL into the LC/MS/MS system. Analytical Method LC Method Parameters Mobile Phase: A - 5 mM ammonium formate in water, with 0.01 % formic acid
Apr 28, 2021 · Analysis of seven pesticides and two ISTDs was performed by using LPGC-MS/MS on a Thermo Trace 1310 GC coupled to a TSQ 8000 triple quadrupole mass spectrometer with EI (Thermo Scientific, San Jose, USA). Analytes were separated using an Rxi-5 ms, 15 m × 0.53 mm × 1.00 μm, connected to a Hydroguard column, 5 m × 0.18 mm (Restek Corporation).
HPLC chromatograms of calibrated PAH standard and three examples of the tested tea samples. Fluorescent excitation at 260 nm and emission at 350 nm, 420 nm, 440 nm, and 500 nm.
Apr 01, 2021 · The legal cannabis market is one of the fastest growing markets across the globe. In 2019, cannabis use for medicinal purposes in the United States generated $4 billion to $4.9 billion in sales, compared to the adult-use estimates between $6.6 billion and $8.1 billion ( Marijuana Business Daily, 2020 ).
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