The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.
The deionizing and deoxidizing water is required by the methylene blue spectrophotometric method in the new national standard to analyze sulfide in water and waste water.
Methods Three handred and sixty-one patients with acut chlorphenamidine poisoning cases were gastric lavage completely and treated with proper amount of methylene blue and large dose of VitC.