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germ
:
math, physics, and chemistry
>
ameliorate phosphate buffer
改良磷酸盐缓冲液
(小肠结肠炎耶尔森氏菌专用)
成分
磷酸氢二钠(na2hpo48.23g
磷酸二氢钠(nah2po4·h2o) 1.2g
氯化钠(nacl) 5.0g
三号胆盐 1.5g
山梨醇 20g
制法
将磷酸盐及氯化钠溶于蒸馏水中,再加入三号胆盐及山梨醇,溶解后校正ph为7.6,分装试管,于121℃高压灭菌15min,备用