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當(dāng)前位置：首頁(yè) > 產(chǎn)品中心 > Ultrasep ES液相色譜柱 > Ion Exchangers（離子交換） > Determination of Organic Acids, Carbohydrates, ａnd
簡(jiǎn)要描述：In addition to our range of silicagels we are offering sulfonated styrene-divinyl resins （GROM Polymer Phases） for the analysis of organic acids, carbohydrates, und sugar alcohols. The resins are ava
產(chǎn)品型號(hào)： 廠商性質(zhì)：生產(chǎn)廠家更新時(shí)間：2024-08-07訪 問 量：1325詳細(xì)介紹
Polymer Phases (Organic Ion Exchangers) | ||
In addition to our range of silicagels we are offering sulfonated styrene-divinyl resins (GROM Polymer Phases) for the analysis of organic acids, carbohydrates, und sugar alcohols. The resins are available in the H-form (H+IEX), sodium-form (Na+IEX), Calcium-form (Ca++IEX), and in the lead-form (Pb++IEX). For the polymeric columns up to 40% acetonitrile, 30% ethanol, or 5% isopropanol are used as organic eluents. Methanol should not be applied. Organic columns should be washed for some hours with acetonitrile/water (30/70). Contaminations by metal ions are removed for the calcium-form column with a solution of 0.1 M calcium nitrate, for the H+-form column with 0.1 M sulfuric acid. The storage of the columns is done under water or under 0.1 M sulfuric acid, respectively. | ||
| Maximum operation pressure: 100 bar | Maximum operation temperature: 90 °C and 85 °C, respectively | |
| Examples of | Analyzed in Application |
| Examples of | Analyzed in Application
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Acetic acid | POL1 | Malic acid | POL1 | ||||||||||||||||||
| Arabinose | POL2 | Mannitol | POL4 | POL1 | ||||||||||||||||
iso-Butanol | POL2 | Mannose | POL4 | ||||||||||||||||||
| n-Butanol | POL2 | Methanol | POL2 | POL2 | ||||||||||||||||
| Citric acid | POL1 | Oxalic acid | POL1 | |||||||||||||||||
| Ethanol | POL2, POL3 | iso-Propanol | POL2 | POL3 | ||||||||||||||||
| Ethylene glycol | POL2 | n-Propanol | POL2 | |||||||||||||||||
| Formic acid | POL1 | Raffinose | POL2 | POL4 | ||||||||||||||||
| Fructose | POL2, POL3 | Ribitol | POL4 | |||||||||||||||||
| Galactose | POL3 | Saccharose | POL2, POL3 | |||||||||||||||||
Glucose | POL2, POL3, POL4 | Sorbitol | POL3, POL4 | ||||||||||||||||||
Glycerol | POL2 | Succinic acid | POL1 | ||||||||||||||||||
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| Prices are valid in the European Union and Switzerland. All prices are subject to confirmation and are to be understood for delivery ex works. The prices are subject to change without notice. | |||||||||||||||||||||
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