戴安公司生產(chǎn)的儀器主要有離子色譜儀、高效液相色譜儀、快速溶劑萃取儀和氨基酸直接分析儀。其中離子色譜儀憑借著雄厚的技術(shù)優(yōu)勢和方法已廣泛地應(yīng)用于各個領(lǐng)域，其*達(dá)80%。與離子色譜相關(guān)的文章有90%均出自戴安公司生產(chǎn)的離子色譜儀。
| 型號 | 美國戴安 P/N: 082739 |
|---|---|
| 廠商性質(zhì) | 代理商 |
| 更新日期 | 2018-05-09 |
Size-Exclusion Chromatography (SEC) Columns for Separating Water-Soluble Polymers
Thermo Scientific? Acclaim? SEC-300 and SEC-1000 columns are a family of high-performance size-exclusion chromatography columns specifically designed for the separation of water-soluble polymers and oligomers. Acclaim SEC columns are available in two pore sizes, 300 ? and 1000 ?, and are optimized for separating a broad molecular weight range. Water-soluble polymers cover a wide range of highly varied families of products, both of natural or synthetic origin, and have numerous uses in pharmaceuticals, medications, cosmetics, food products, and industrial processes, to name a few.
Column features include:
These columns are packed with spherical, monodispersed, hydrophilic polymethacrylate particles synthesized by multipore particle synthesis technology. Combined with the use of small particle sizes (5 ?m for Acclaim SEC-300 and 7 ?m for Acclaim SEC-1000), they provide high-resolution and good linearity of the calibration curve for accurate and reliable analysis of a variety of water-soluble polymers.
The Acclaim SEC-1000 uses polymethacrylate particles with a nominal pore size of 1000 ?, resulting in a broad linear calibration range from 1,000 to 1,000,000 Dalton. Therefore, it is suitable for characterizing high molecular weight polymers. The Acclaim SEC-300 uses polymethacrylate particles with a nominal pore size of 300 ?, giving a linear calibration range from 100 to 50,000 Dalton. As a result, this column offers good resolution for lower molecular weight polymers or oligomers.
技術(shù)參數(shù)：
| Acclaim SEC Column Specifications | ||
|---|---|---|
| Acclaim SEC-300 | Acclaim SEC-1000 | |
| Substrate | Hydrophilic polymethacrylate resin, Spherical | |
| Particle size | 5?m | 7?m |
| Pore size | 300 ? (multipore) | 1000 ? (multipore) |
| Separation range for polyethylene oxides (PEO) | 100–50,000 Daltons | 1,000–1,000,000 Daltons |
| Exclusion limit for polyethylene oxides (PEO) | 50,000–150,000 Daltons | 3,000,000–7,500,000 Daltons |
| Operating pH range | 2–12 | |
| Operating flow rate range | ≤ 0.35 mL/min: 4.6 × 300 mm ≤ 1.0 mL/min: 7.8 mm i.d. formats | |
訂購信息：
| Analytical Columns | |
|---|---|
| Acclaim SEC-1000, 7?m, Analytical (4.6 x 300 mm) | 079724 |
| Acclaim SEC-1000, 7?m, Analytical (7.8 x 300 mm) | 079721 |
| Acclaim SEC-1000, 7?m, Analytical (7.8 x 150 mm) | 079722 |
| Acclaim SEC-300, 5?m, Analytical (4.6 x 300 mm) | 079723 |
| Acclaim SEC-300, 5?m, Analytical (7.8 x 300 mm) | 079725 |
| Acclaim SEC-300, 5?m, Analytical (7.8 x 150 mm) | 079726 |
| Guard Columns | |
|---|---|
| Acclaim SEC-1000, 7?m, Guard (4.6 x 33mm) | 082739 |
| Acclaim SEC-300, 5?m, Guard (4.6 x 33mm) | 082740 |
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