Spectrum貨號132480 SSpectra/Por 2 Dialysis Membrane Discs, 12-14 kD MWCO, 47 mm Diameter, 50 discs/pkg. Spectrum offers dry Standard RC dialysis membrane, Spectra/Por 1, 2, 3 & 4, in single layer discs. The membrane discs are available in 3 diameter sizes (33mm, 47 mm & 100 mm) typically used in various commercially available dialysis equipment. Each package contains 50 discs separated by glycine paper.

透析膜等級standard | 膜材質RC | 分子量12-14kDa |高滲透性 (直徑47 mm)

Spectra/Por® 1 – 4 Standard RC之特點

更多Spectra/Por® 1 – 4產品規格

Spectrum致力於生產透析、過濾、濃縮產品，已有40多年歷史，為全球最大透析商品供應商。無論是使用Hollow Fiber filter進行細胞、蛋白、病毒的過濾濃縮，或是小分子的透析移除，都有相對應的工具設備可使用。以下為不同材質之透析膜 CE (Cellulose Ester, CE) ME (Mixed Cellulose, ME) RC (Regenerated Cellulose, RC) PES (Polysulfone, PS) PES (Polyethersulfone, PES) PP (Polypropylene, PP) PVDF (Polyvinylidene difluoride, PVDF)於不同溶液之建議使用表。

Standard Grade Regenerated Cellulose (RC) is a clear, flexible and sturdy dialysis membrane with a “looser” molecular selectivity. This economical membrane is ideal for a broad range of applications in which there is a significant size difference between the MW species being separated; including sample prep, desalting, buffer exchange, pH change, protein purification, etc. Offering a good chemical compatibility, Standard Grade RC can be used with dilute strong acids and bases, concentrated weak acids and bases, most alcohols and some mild or dilute organics, including DMSO. Standard RC can tolerate pH 2 – 12 and temperatures 4-121 °C

Spectrum透析膜與化學溶液相溶性比較表

透析膜長度

全長＝［（樣品容量）／（體積／長度比）］＋（額外的10－20%）＋4 cm →計算您要使用多長的透析膜例如：透析膜平寬（FW）為16 mm，體積／長度比為0.79 ml/cm。欲透析5 ml樣品，則至少需約6.5 cm透析膜。但還需要額外的10－20%的長度（至少1 cm）使透析管填充空氣維持浮力。最後還需要頭尾各2 cm給透析夾使用。整個透析膜長至少需要11.5 cm長。

透析夾之選擇

Universal透析夾適用各種透析膜，Speatra/Por僅適用於RC透析膜 →透析夾詳細資訊 使用時選用大於透析膜平寬（Flat Width, FW）4－10mm以上的透析夾來進行密封。

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