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: 068123 |
|---|---|
| 廠商性質(zhì) | 代理商 |
| 更新日期 | 2018-04-30 |
The Thermo Scientific Acclaim? Surfactant columns are high-efficiency silica-based HPLC columns for separating a wide variety of surfactants, including anionic, cationic, nonionic, and amphoteric surfactants. Due to their novel chemistry, these columns exhibit a unique polarity that provides significantly improved resolution for individual oligomers of ethoxylated surfactants, compared with conventional C18 columns.
The Acclaim Surfactant columns can be used with evaporative light scattering detectors (ELSD), suppressed conductivity detectors (SCD), and UV-Vis detectors (UV). These columns are resistant to dewetting under highly aqueous phase conditions, and thus can be used to provide excellent resolution between strongly hydrophilic compounds, such as isomers of xylene sulfonate.
Surfactants are widely used in industrial, agricultural, and pharmaceutical markets, and in products as diverse as pesticides, detergents powders, petroleum products, cosmetics, and pharmaceuticals. The Acclaim Surfactant columns have been designed specifically for the HPLC separation of these surfactants.
The Acclaim Surfactant columns can be used for the HPLC separation of anionic surfactants (alkylbenzenesulfonates, alkyl sulfates, alkylether sulfates) and cationic surfactants (alkyl quaternary ammonium salts, benzylalkylammonium salts, pyridinium salts, and quaternary imidazolium compounds) nonionic surfactants, and polyethylene glycols (PEGs).
技術(shù)參數(shù)：
| Acclaim Surfactant Column Specifications | |
|---|---|
| Metal impurity (Na, Fe, Al) | <10.0 ppm Total Metal <3.0 ppm Individual Metal |
| Pore volume | 0.9–1.0 mL/g |
| Average pore diameter | 120 ? |
| Particle size distribution (40/90) | <1.3 |
| Total carbon content | 12% |
| Carbon chain length | C18 |
| Particle shape | Spherical |
| Endcapped | Yes |
| Surface area | 300 m2/g |
| pH range | 2.5–7.5 |
| Temperature limit | < 60 oC |
| Starting material | Ultrapure silica |
| Particle size | 5 ?m |
訂購(gòu)信息：
| Surfactant Analytical Columns | |
|---|---|
| Acclaim Surfactant, 3?m Analytical, (2.1 x 150mm) | 070085 |
| Acclaim Surfactant, 3?m Analytical, (3.0 x 150mm) | 070084 |
| Acclaim Surfactant, 5 ?m, Analytical, (2.1 x 150mm) | 068123 |
| Acclaim Surfactant, 5 ?m Analytical, (4.6 x 150 mm) | 063201 |
| Acclaim Surfactant, 5 ?m Analytical, (4.6 x 250 mm) | 063203 |
| Surfactant Guard Columns | |
|---|---|
| Acclaim Surfactant, 5?m, Guard Cartridges, (2.1 x 10mm), 2 ea; requires holder 069580 | 069693 |
| Acclaim Surfactant, 5?m Guard Cartridges (3 x 10mm), 2ea, requires holder 069580 | 071991 |
| Acclaim Surfactant, 5 ?m Guard Cartridges, (4.6 x 10 mm), 2 ea (use V-2 Holder) | 069701 |
| Acclaim SST Guard Cartridge Holder V-2 | 069580 |
| Acclaim Guard Kit (Holder and coupler) V-2 | 069707 |
| Guard to Analytical Column Coupler V-2 | 074188 |
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