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新虫 (初入文坛)

应助: 0 (幼儿园)
金币: 9.2
帖子: 19
在线: 8.1小时
虫号: 7359007
注册: 2017-10-24
专业: 药物、基因载体系统

[求助] 求助翻译，看不太懂已有1人参与

The bridging polymers polyallylamine, chitosan, gelatin, and polyethyleneimine were dissolved into MES buffer at 2.0% and the pH was adjusted to 6. The collagen was used as a stock solution (1.0%). 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC), sulfated or unsulfated N-hydroxysuccinimide (NHS) were used as the coupling reagents.
其中The collagen was used as a stock solution (1.0%)是什么意思？作用是什么

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