Soluble calf skin collagen is suitable for gel formation and assay of collagenase. Collagen is soluble in 0.075 M sodium citrate pH 3.7 and in dilute acetic acid 0.01 M to 0.5 M.

Prepared from soluble calf-skin collagen (Product No. C857) by labeling with fluorescein-isothiocyanate (isomer 1). Excess FITC is removed by gel filtration and sequential precipitations with NaCl and dialysis (43).

Elastin Products Company, Inc. has been manufacturing quality biochemicals for 30 years. Providing research products to many pharmaceutical companies, universities, and researchers. Our quality in products have been estabilished for many years through the publishing of papers using EPC as the source.

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EPC工程总承包即EngineeringProcurementConstruction模式，又称设计、采购、施工一体化模式。 是指在项目决策阶段以后，从设计开始，经招标，委托一家工程公司对设计-采购-建造进行总承包。

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2024年11月10日 · 项目采用EPC (设计、采购、施工)总承包模式，从工程设计开始到工程竣工验收合格并办理备案手续为止的工作，包括工程施工图设计、设备采购、工程施工、竣工验收和最终交付 (包含档案归档)等工作。