| 摘要 |
<p>A column injection apparatus (10) wherein the center flow of fluid is conveyed by a conduit (12) beyond the crown (36) of the column (18) includes a center flow conduit (12) affixed to a cap (14) such that, when the cap (14) is attached to a chromatographic column (18), the conduit (12) penetrates the packing (24) of the column (18) beyond the crown (36) thereof.</p> |
