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(shì)和方法已廣泛地應(yīng)用于各個(gè)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(hào) | 美國(guó)戴安 P/N: 078835 |
|---|---|
| 廠商性質(zhì) | 代理商 |
| 更新日期 | 2018-04-16 |
Attain the optimal combination of chromatographic speed and resolution using the new Thermo Scientific? Dionex? IonPac? CS19-4?m cation-exchange column. This high capacity, high resolution capillary column provides excellent resolution of common cations, small polar amines and polyvalent amines in complex sample matrices. Compared to the previous Dionex IonPac CS19 column, the new ion-exchange column uses smaller resin particles for more efficient separations resulting in faster analysis, more accurate peak integration, and more reliable results.
The Dionex IonPac CS19-4?m carboxylate-functionalized cation-exchange column has similar selectivity to the Dionex IonPac CS19 column for the six common cations, small polar amines (including alkanolamines and methylamines) and moderay hydrophobic and polyvalent amines (including biogenic amines and alkyl diamines). Applications run on the Dionex IonPac CS19 column can be easily transferred to the Dionex IonPac CS19-4?m column with the benefit of increased peak resolution which provides more consistent results. The Dionex IonPac CS19-4?m column is available in three formats, standard bore (4 × 250 mm), microbore (2 × 250 mm), and capillary (0.4 × 250 mm). The capillary and microbore formats require less eluent thereby reducing operating costs.
The Dionex IonPac CS19-4?m column is targeted for analysis of power plant waters treated with ammonium, morpholine, or ethanolamine; as well as chemical additives; chemical process solutions; scrubber solutions; personal care products; and food samples.
The smaller resin particles used in the Dionex IonPac CS19-4?m column produce increased backpressure. When operating the Dionex IonPac CS19-4?m microbore or capillary column at standard flow rate, an IC system capable of operating up to 3000 psi is sufficient. However, to take advantage of the fast runs, using elevated flow rates, a high pressure IC system, such as the Thermo Scientific Dionex ICS-5000+ HPIC or Dionex ICS-4000 HPIC is required. The Dionex ICS-5000+ HPIC system is required for standard operation of the Dionex IonPac CS19-4?m standard bore column.
| Thermo Scientific Dionex IonPac? CS19-4?m Cation-Exchange Column Specifications | |
|---|---|
| Dimensions: | Dionex IonPac CS19-4?m Analytical Column: 4 × 250 mm Dionex IonPac CG19-4?m Guard Column: 4 × 50 mm Dionex IonPac CS19-4?m Analytical Column: 2 × 250 mm Dionex IonPac CG19-4?m Guard Column: 2 × 50 mm Dionex IonPac CS19-4?m Capillary Column: 0.4 × 250 mm Dionex IonPac CG19-4?m Capillary Guard Column: 0.4 × 50 mm |
| Maximum Operating Pressure: | 5000 psi (34 MPa) |
| Phase Compatibility: | Acidic eluents, 0–10% HPLC solvents, excluding alcohols |
| Substrate Characteristics: | Bead Diameter: 4 ?m supermacroporous Crosslinking (%DVB): 55% |
| Functional Group Characteristics: | Ion-Exchange Group: Grafted carboxylic acid Surface Characteristics: Medium hydrophobic |
| Capacity: | 2410 ?eq (4 × 250 mm analytical column) 46 ?eq (4 × 50 mm guard column) 600 ?eq (2 × 250 mm analytical column) 11 ?eq (2 × 50 mm guard column) 24 ?eq (0.4 × 250 mm capillary column) 0.5 ?eq (0.4 × 50 mm capillary guard column) |
| Column Construction: | PEEK? with 10-32 threaded ferrule style end fittings. All components are nonmetallic. |
| Analytical Columns | |
|---|---|
| Dionex IonPac CS19-4?m Capillary Column (0.4 x 250 mm) | 078835 |
| Dionex IonPac CS19-4?m Analytical Column (2 x 250 mm) | 078836 |
| Dionex IonPac CS19-4?m Analytical Column (4 x 250 mm) | 078837 |
| Guard Columns | |
|---|---|
| Dionex IonPac CG19-4?m Capillary Guard Column (0.4 x 50 mm) | 078838 |
| Dionex IonPac CG19-4?m Guard Column (2 x 50 mm) | 078839 |
| Dionex IonPac CG19-4?m Guard Column (4 x 50 mm) | 078840 |
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