GL-V9 (MW 409.48, purity 98.48%, Fig 1 ) and 5-O-glucuronide GL-V9 acetate (MW 645.65, NMR purity 88.00%, Fig 1 ) were synthesized by China Pharmaceutical University [14 (link)]. Phenacetin (internal standard, purity 98.77%) was purchased from Dr. Ehrenstorfer GmbH Company (Augsburg, Germany). Methanol and acetonitrile (HPLC grade) were purchased from Fisher Scientific Company. Formic acid (LC-MS grade) was purchased from MACKLIN Company and DMSO (HPLC grade) was purchased from SIGMA Company. The ultrapure water used for UPLC–MS/MS was prepared from an Elix-Milli-Q water purification system (Millipore, Bedford, USA). All other chemicals were of analytical grade.
Elix milli q water purification system
Manufactured by Merck Group
Sourced in United States
The Elix-Milli-Q water purification system is a laboratory equipment designed to produce high-quality purified water. It employs a multi-stage filtration process to remove impurities and contaminants, providing a consistent supply of purified water for various laboratory applications.
Automatically generated - may contain errors
Lab products found in correlation
Phenacetin, by LGC (1 mentions)
Formic acid lc ms grade, by Maclin Biochemical Technology (1 mentions)
Dmso hplc grade, by Merck Group (1 mentions)
Methanol and acetonitrile hplc grade, by Thermo Fisher Scientific (1 mentions)
Analytical grade methanol, by Merck Group (1 mentions)
Ferrous gluconate, by Merck Group (1 mentions)
2 3 3 d3 acrylamide, by Cambridge Isotopes (1 mentions)
Acetic acid solution, by ITW Reagents (1 mentions)
Sodium chloride (nacl), by Merck Group (1 mentions)
2 protocols using elix milli q water purification system
1
Synthesis and Characterization of GL-V9 and its 5-O-Glucuronide Acetate
2
Analytical Reagent Procurement for Research
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Acetic acid solution was purchased from PANREAC APPLICHEM® (Darmstadt, Germany). Ferrous gluconate and sodium chloride were supplied by Sigma-Aldrich (St. Louis, MO). Calcium chloride was obtained by Tetra Chemicals (Helsingborg, Sweden). Acrylamide (>99 %) was purchased from Fluka (Buchs SG, Switzerland). 2,3,3-D 3 -acrylamide (98 %) was obtained from Cambridge Isotope Laboratories (Andover, MA, USA). Analytical grade methanol was supplied by Merck (Darmstadt, Germany). A nylon syringe filter was obtained from the). FILTER-LAB (Barcelona, Spain). ISOLUTE Multimode (300 mg, 6 mL) and ISOLUTE ENV+ (200 mg, 3 mL) solid phase extraction cartridges were obtained from International Sorbent Technology (Hengoed, Mid Glamorgan, UK). Nylon and nitrocellulose syringe filters (0.45 μm) were purchased from Tracer Analytical Technologies (Madrid, Spain). Water was purified with an Elix/Milli-Q water purification system (Millipore, Bedford, MA, USA).
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