XSelect CSH C18色谱柱是以C18为骨架，相比普通的C18填料，CSH C18具有宽泛的选择性。CSH技术能改善峰形，提高载液量。即使装填在低分散性的柱体内，2.5 μm[XP]柱仍能获得优越的分离效果、稳定性，HPLC到UPLC无缝切换。
2010年，沃特世推出了新型表面带电杂化颗粒(CSH™)技术，为杂化颗粒表面赋予少量正电荷。利用这一技术可以使用低离子强度的流动相(如0.1%甲酸体系)分析碱性化合物，而仍能获得卓越的峰形与载量。CSH技术还允许使用甲酸来替代TFA等离子对试剂，而仍保持带电分析物的良好峰形，对于质谱分析尤为有利。
ACQUITY UPLC CSH C18柱克服了大多数现代C18柱在低离子强度流动相条件下(如0.1%甲酸体系)因载量所导致的峰形差问题。因带有严格控制下的、低水平的正表面电荷，ACQUITY UPLC CSH C18柱为碱性化合物提供行业领先的峰形，而无需使用离子对试剂。
| 品名 | 型号 | 编号 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 100 mm, 3/pkg | 176002601 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 100 mm, 3/pkg | 176002597 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 75 mm, 3/pkg | 176002596 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 30 mm, 3/pkg | 176002598 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 30 mm, 1/pkg | 186006104 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 100 mm, 1/pkg | 186006103 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 75 mm, 1/pkg | 186006102 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 50 mm, 1/pkg | 186006101 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 30 mm, 1/pkg | 186006100 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 100 mm, 1/pkg | 186006107 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 150 mm, 3/pkg | 176002892 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 150 mm, 3/pkg | 176002891 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 150 mm, 1/pkg | 186006728 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 150 mm, 1/pkg | 186006727 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 30 mm, 3/pkg | 176002594 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 50 mm, 3/pkg | 176002595 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 4.6 mm X 75 mm, 1/pkg | 186006110 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 4.6 mm X 100 mm, 1/pkg | 186006111 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 75 mm, 3/pkg | 176002600 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 50 mm, 3/pkg | 176002599 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 50 mm, 1/pkg | 186006105 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 4.6 mm X 30 mm, 1/pkg | 186006108 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 4.6 mm X 50 mm, 1/pkg | 186006109 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3 mm X 75 mm, 1/pkg | 186006106 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 2.1 mm X 5 mm, 3/pkg | 186007817 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 3.9 mm X 5 mm, 3/pkg | 186007819 |
| XSelect CSH C18 XP Column | 130?, 2.5 μm, 4.6 mm X 150 mm, 1/pkg | 186006729 |
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