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戴安公司的快速溶劑萃取儀15分鐘之內(nèi)僅用15毫升溶劑既可完成對10g樣品的萃取，該技術已在環(huán)境、藥物、食品和聚合物工業(yè)等領域得到廣泛應用。
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美國戴安Dionex Acclaim Surfactant LC Columns 液相色譜柱
Acclaim Surfactant LC Columns
Outstanding Separation of All Classes of Surfactants
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.
Broad Range of Applications
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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