METHOD Indirect content determined of potassium citrate solution by determined content of calcium ion after complex reaction between potassium citrate and calcium chloride.
方法通过测定枸橼酸钾和钙离子络合后的钙离子含量，间接测定枸橼酸钾含量。
2
Broadband radar absorbing materials were prepared by blending modified poly (vinyl chloride) with complex absorbers including regular powder absorbers and conducting fibers.
采用常规粉体吸收剂和导电纤维作为复合吸收剂，掺混于改性聚氯乙烯基体中，制备出宽频雷达吸波材料。
3
Pyridine can improve the ability of acylation when it complex with acyl chloride. The theory yield is high but aftertreatment is difficult and real yield is very low.