SpectraPor® Closures are designed with tight-gripping seal ridges that provide a reliable leak-proof seal for thin-walled and more flexible dialysis tubing. These closures should be used only with RC and low MWCO (=< 20 kD) CE dialysis tubing.  For best results, select a pair of closures that has a sealing width 4 to 10 mm longer than the flat width of the dialysis tubing to ensure a proper seal.

Made from polypropylene (PP) material, the compatibility of SpectraPor® Closures with specific solvents should be confirmed on the Repligen Chemical Compatibility table.

SpectraPor® Closures are available in three functional types for improved dialysis efficiency: Standard, Weighted and Magnetic.

Standard Type Closure

SpectraPor® Standard Closures float and aid in sample buoyancy when applied to the top-end of the dialysis tubing; autoclavable and available in a variety of colors for easy sample identification.

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产品规格

功能优势 样品漂浮 & 垂直定向
膜类型 仅用于标准级RC膜
6 Sealing Widths12, 23, 35, 55, 75 & 90 mm
4 种颜色橙色、白色、绿色、蓝色
数量 10个/包
材料 聚丙烯
Temperature 0 - 121°C (可高压灭菌)

配重膜夹

SpectraPor® Weighted Closures have an encased stainless-steel bar for additional weight. When applied to the end of the dialysis tubing, the end turns downward to ensure a vertical orientation while providing a leak-proof seal.

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产品规格

功能优势配重,以使样品垂直定向
膜类型Standard RC, Biotech RC & low MWCO Biotech CE (=< 20 kD), Not recommended for use with high MWCO Biotech CE (> 20 kD)
6 Sealing Widths 12, 23, 35, 55, 75 & 90 mm
1 Color白色
数量 10个/包
材料 聚丙烯
Temperature 0 - 121 °C (可高压灭菌)

配对(标准和配重)膜夹

SpectraPor® Paired Closures combines 10 standard and 10 weighted closures for dialysis convenience. Optimal sample buoyancy and vertical orientation can be achieved by applying both a Standard and a Weighted closure to opposite ends of the same dialysis tubing.  

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产品规格

功能优势 漂浮和垂直定向
膜类型Standard RC, Biotech RC & low MWCO Biotech CE (=< 20 kD), Not recommended for use with high MWCO Biotech CE (> 20 kD)
6 Sealing Widths 12, 23, 35, 55, 75 & 90 mm
2 种颜色橙色 (标准) 和白色 (配重)
数量10 个标准 & 配重膜夹对/包
材料聚丙烯
Temperature0 - 121 °C (可高压灭菌)

磁性膜夹

SpectraPor® Magnetic-Weighted Closures contain a magnetic fluorocarbon coated stainless steel bar, eliminating the need for conventional stir bars. Applied to the bottom end of the dialysis tubing, this closure provides complete sample submersion and rotation on a stir plate.  

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产品规格

功能优势 垂直定向和旋转
膜类型 Standard RC, Biotech RC & low MWCO Biotech CE (=< 20 kD), Not recommended for use with high MWCO Biotech CE (> 20 kD)
4 Sealing Widths23 mm、35 mm、55 mm、75 mm
1 Color红色
数量 2个/包
材料 聚丙烯(PP),碳氟涂层磁性不锈钢条
Temperature 0 - 121 °C (可高压灭菌)

SpectraPor® Tubing Closures Part Numbers

膜夹类型

彩色

密封宽度

数量

12 mm

23 mm

35 mm

55 mm

75 mm

90 mm

标准

橙色
白色
绿色
蓝色

132734
-
-
-

132735
-
-
-

132736
142736
142837
142936

132737
142737
142837
142937

132738
142738
142838
142938

132739
142739
142839
142939

10个/包

配重

白色

132742

132743

132744

132745

132746

132747

10个/包

配对

橙色/白色

132749

132750

132751

132752

132753

132748

10对

磁性

红色

-

132760

132762

132764

132766

-

2个/包

资源

参考文献
View scientific posters.