Anion Exchange 陰離子交換
在陰離子交換層析法中,固定床具有帶正 (+) 電的離子表面,而樣品離子則帶負 (-) 電。該技術幾乎專門用於離子或可電離樣品。樣品上的負電荷越強,它就越能被固定相上的正電荷吸引,因此洗脫所需的時間也就越長。離子層析中的洗脫受流動相 pH 值和離子強度以及在較小程度上受操作溫度的影響。與基於二氧化矽的載體相比,能夠使用整個 pH 範圍和高溫是明顯的優勢。
Anion Exchange Capacity 陰離子交換容量
陰離子交換容量是交換樹脂可以結合的負電荷(陰離子)數量的度量,以每 1 克樹脂的單電荷離子當量報告。交換容量取決於流動相的 pH 值和陰離子交換色譜;隨著流動相酸度降低(pH 升高),交換容量降低。
Hamilton 提供六種聚合物填料用於陰離子交換分離。
Part # / Ref | Hardware Inner Diameter | Hardware Length | Particle Size | Hardware Material |
---|---|---|---|---|
79743 |
2.1 mm |
100 mm |
7 µm |
PEEK |
79732 |
4.1 mm |
150 mm |
7 µm |
Stainless Steel |
79733 |
4.1 mm |
150 mm |
7 µm |
Stainless Steel |
79734 |
4.1 mm |
250 mm |
7 µm |
Stainless Steel |
79735 |
4.1 mm |
250 mm |
7 µm |
Stainless Steel |
79641 |
1.0 mm 2.1 mm 4.1 mm 4.6 mm |
(Choose a length) |
(Choose a particle size) |
(Choose hardware material) |
79671 |
4.6 mm |
250 mm |
7 µm |
PEEK |
79738 |
4.6 mm |
150 mm |
7 µm |
PEEK |
79741 |
4.6 mm |
250 mm |
7 µm |
PEEK |
79642 |
7.0 mm 7.8 mm 10 mm |
(Choose a length) |
(Choose a particle size) |
Stainless Steel |
79643 |
21.2 mm 30 mm |
(Choose a length) |
(Choose a particle size) |
Stainless Steel |
Part # / Ref | Format | Guard Column Size | Hardware Material |
---|---|---|---|
79726 |
Guard Cartridge Kit |
Semiprep/Preparative |
Stainless Steel |
79727 |
Guard Cartridge Kit |
Analytical |
PEEK |
79293 |
Guard Column |
Analytical |
Stainless Steel |
79728 |
Replacement Guard Cartridge |
Analytical |
Stainless Steel |
79729 |
Replacement Guard Cartridge |
Analytical |
PEEK |
32908 |
Guard Cartridge Holder |
Analytical |
Stainless Steel |
79477 |
Guard Cartridge Holder |
Analytical |
PEEK |
Part # / Ref | Particle Size | Pore Size | UOM |
---|---|---|---|
79827 |
7 µm |
100 Å |
per gram |