In recent years, public debate over the standard setting process related to fluoride in drinking water and the fiuoridation of water supplies has been stee... R Rajagopal,G Tobin - 《Environmental Geochemistry & Health》 被引量: 30发表: 1991年 NIXTAMALIZATION IN TWO STEPS WITH DIFFERENT CALCIU...
Why is fluoride added to drinking water?Exposing teeth to fluoride has been shown to prevent cavities, but there's some nuance behind the research on the safety and efficacy of adding fluoride to tap water.Livescience Use an AI Writing Tool That Actually Understands Your VoiceImprove gramm...
Major anions including sulfate (SO42 − ), nitrate (NO3−), fluoride (F−) and chloride (Cl−) concentrations were measured chromatographically42,43 with a Dionex ICS-1100 ion chromatograph (Thermo Fischer Scientific, Waltham, MA, USA). Base cations including sodium (Na+), potassium (...
After the addition of phenylmethylsulphonyl fluoride and lysozyme (final concentrations of 1 mM and 1 mg ml À 1, respectively), the cell suspension was incubated for 20 min at 4 °C and then sonicated. Following RNase (10 mg ml À 1) and DNase (5 mg ml À 1) treatment for ...
Fleet ME, Pan Y (1997) Rare earth elements in apatite: Uptake from H2O-bearing phosphate-fluoride melts and the role of volatile components. Geochim Cosmochim Acta 61(22):4745–4760 Google Scholar Frei R (1996) Sulfur in bulk rock and igneous apatite: tracing mineralized and barren trends in...
The main problem with solar arrays is the chemicals needed to process silicate into the silicon used in the panels. To make pure enough silicon requires processing it with hydrochloric acid, sulfuric acid, nitric acid, hydrogen fluoride, trichloroethane, and acetone. In addition, they also need ...
to derivatize the carboxyl and aldehyde groups. The derived dibutyl esters and dibutoxy acetals were extracted with n-hexane and washed three times with ultrapure water (for the removal of polar compounds, including hydrogen fluoride (HF) and boric acid (H3BO4) derived from the borontrifluoride...
Extracted protein samples were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and transferred onto a polyvinylidene fluoride membrane under constant voltage conditions. The membrane was blocked with sealing solution for 1 h and was then incubated overnight at 4 °C with ...
Protein was extracted from cultured cells by RIPA lysis buffer (Yeasen, Shanghai) with phenylmethylsulfonyl fluoride (PMSF) (1:100; Beyotime, China) and quantified with the BCA Protein Assay Kit (Beyotime). Protein lysates were separated on 15% sodium dodecyl sulfate-polyacrylamide gels and trans...
AML-12 cells, primary mouse hepatocytes and liver tissue from mice were lysed with ice-cold lysis buffer containing: 50 mmol/l Tris–HCl, pH 7.4; 1% NP-40; 150 mmol/L NaCl; 1 mmol/L EDTA; 1 mmol/L phenylmethylsulfonyl fluoride; and complete proteinase inhibitor mixture (one ...