However, the business owners have attributed the problem to high alcohol taxes, which they have insisted are driving people to favour bootleg production. In 2023, methanol-spiked drinks led to the ...
Absorbance measurements were performed in an UV-Vis spectrophotometer at wavelength 517 nm. Catechin and 3 mL of HPLC-grade methanol were used as controls. Solutions of the chloroform fraction were ...
This app note describes a non ion-pairing reversed-phase LC/MS method for highly modified ASOs, DNA, sgRNA, and siRNA ranging from 14- to 103-mer oligonucleotides.
Phenobarbital reference substance (Lot J) and phenytoin (Lot J0E090) as internal standard (IS) were purchased from U.S. Pharmacopeia (USA). HPLC grade acetonitrile, methanol and tert-butyl methyl ...
The charcoal was extracted with 1.5 ml extraction solvent composed of carbon disulphide (HPLC grade; Tedia, Fairfield, OH, USA) and n-pentanol (American Chemical Society certified; Fisher Scientific, ...
Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, ...
In a recent study, scientists from Europe reflected over how more testing protocols must be created to monitor and control micro- and nanoplastics (MNPs) in soil.