| 供货周期： | 现货 |
| 品牌： | Supelco |
| 货号： | 20540-U |
PureCol 色谱柱进样口衬管
When nonvolatiles accumulate in the column inlet, you must replace several inches of packing - or the entire column. A silanized glass PureCol sleeve,inserted in the column inlet, solves this problem simply and inexpensively.
When column performance begins to deteriorate, you can quickly and conveniently replace the sleeve - often without removing the column from the instrument. Replacement time is comparable to replacing a septum.
Replace the PureCol sleeve when you change the septum, or when you analyze a new type of sample. PureCol sleeves are available in two sizes. The larger size fits any 4 mm I.D. glass column that has 7 cm of straight, unpacked inlet. The smaller size fits any 2 mm I.D. glass columns with 7 cm of straight, unpacked inlet (end must be chamfered). Use PureCol sleeves
with a 2 in. (5 cm) 21-gauge or finer needle.
PureCol 色谱柱进样口衬管
订货信息：
| 描述 | 货号 | 包装 |
| PureCol Sleeve, for 4 mm I.D. columns | 20540-U | 10 ea |
| 20543 | 50 ea | |
| PureCol Sleeve, for 2 mm I.D. columns (chamfered inlet only) | 20534 | 10 ea |
| 20536 | 50 ea |
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