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化工儀器網(wǎng)>產(chǎn)品展廳>配件耗材>色譜配件>離子色譜柱> 碳酸鹽消除裝置(CRD 200和CRD 300)

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碳酸鹽消除裝置(CRD 200和CRD 300)

參考價 15000
訂貨量 ≥1
具體成交價以合同協(xié)議為準(zhǔn)

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產(chǎn)品特點:

The CRD 200 用氫氧根體系淋洗液能除去樣品中二氧化碳,這能除去氫氧化鈉淋洗液中常見的碳酸根色譜柱。
   The CRD 300 能除去碳酸根體系淋洗液中的碳酸,這樣用碳酸鹽體系淋洗液,能達(dá)到用氫氧根體系淋洗液相同的洗脫效果。 
Reduces Carbonate for Improved Sensitivity
產(chǎn)品應(yīng)用:
The Carbonate Removal Device (CRD 200) removes carbon dioxide from the suppressed eluent stream by diffusion through the walls of a gas permeable membrane. With carbonate eluent systems it reduces the background signal to nearly the same levels as that  of hydroxide eluents. Plumbed after the suppressor, the carbon dioxide transfer is aided by a countercurrent flow of basic solution.
The CRD 200 is optimized for the removal of carbonate from hydroxide eluent systems
Minimizing carbonate using the CRD 200 can improve quantification
The increased membrane length of the CRD 300 is optimized for carbonate eluent systems
Reducing the baseline with a CRD 300 results in higher sensitivity
Elimination of the carbonic acid matrix with a CRD 300 increases the linearity range
Exposure to carbon dioxide can cause samples to become contaminated with carbonate. High levels of carbonate originating from dissolved carbon dioxide can interfere with the accurate determination of analytes of interest, such as sulfate and nitrite.
The CRD 200 can be installed easily in any Dionex IC system equipped with an eluent generator, CR-ATC, and ASRS® 300 or ACES® 300 suppressor. The CRD 200 requires no reagents or software control. The CRD 200 is a low-dispersion device designed specifically for use with hydroxide- and borate-based chemistries using Dionex columns.
The CRD 200 is available in three formats. The CRD 200 (4 mm) supports carbonate removal from standard bore systems, the CRD 200 (2 mm) supports carbonate removal from microbore systems, and the CRD 200 (Capillary) supports carbonate removal from capillary-scale systems at flow rates of 5 – 30 μL/min
 
A significant amount of carbonate is removed using the CRD .
 
Background signal is reduced using the CRD 300.
The CRD 300 is easily installed in any Dionex IC system equipped with an ASRS 300 suppressor. It requires either a constant flow of basic solution from a peristaltic pump or evacuation by a vacuum pump. It is a low-dispersion device designed for use with carbonate-based chemistries using Dionex columns.
The CRD 300 is available in two formats. The CRD 300 (4 mm) supports carbonate removal from standard bore systems, while the CRD 300 (2 mm) supports carbonate removal from microbore systems.
訂貨信息:
碳酸鹽消除裝置
 
產(chǎn)品描述
部件號
CRD 200 (4 mm)
062983
CRD 200 (2 mm)
062986
CRD 200 Capillary
072054
CRD 300 (4-mm)
064637
CRD 300 (2-mm)
064638
CRD 300 (4-mm) with Peristaltic Pump Kit
064905
CRD 300 (2-mm) with Peristaltic Pump Kit
064906
Santoprene Tubing for Peristaltic Pump
068518
Ship Kit for Peristaltic Pump/CRD 300
064911
CRD 300 (4-mm) with VP Vacuum Pump Kit
068475
CRD 300 (2-mm) with VP Vacuum Pump Kit
068474
 
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