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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。　　
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(shù)已在環(huán)境、藥物、食品和聚合物工業(yè)等領(lǐng)域得到廣泛應(yīng)用。

詳細(xì)介紹

IonPac AS12A Carbonate Eluent Anion-Exchange Column

Fast Separation of Inorganic Anions, with Excellent Retention of Fluoride

The IonPac^? AS12A anion-exchange column provides fast analysis of common inorganic anions and oxyhalides, such as chlorite and bromate, in environmental waters. This column is also useful for trace chloride and sulfate in high-carbonate matrices.

Provides fast analysis of inorganic anions and oxyhalides at similar concentrations
Resolves trace chloride and sulfate high-carbonate samples

The AS12A is a moderate-capacity, carbonate eluent anion-exchange column designed for the fast, isocratic separation of inorganic anions and oxyhalides, including fluoride, chlorite, bromate, chloride, nitrite, bromide, chlorate, nitrate, phosphate, and sulfate in drinking water, wastewater, groundwater, and other diverse sample matrices.

The common inorganic anions and oxyhalides can be determined in less than 12 min using an isocratic carbonate/bicarbonate eluent coupled with suppressed conductivity detection. It resolves chloride from high concentrations of carbonate. Use the Anion Self-Regenerating Suppressor (ASRS^? 300) with the AS12A column.

Note: For trace bromate in ozonated drinking water, use the high-capacity IonPac AS23, recommended for determination of oxyhalides and inorganic anions.

IonPac AS12A Anion-Exchange Column Specifications
Dimensions	IonPac AS12A Analytical Column: 2 × 200 mm and 4 × 200 mm IonPac AG12A Guard Column: 2 × 50 mm and 4 × 50 mm
Maximum operating pressure	4000 psi
phase compatibility	pH 0–14; 0–100% HPLC solvents
Substrate characteristics	Bead Diameter: 9.0 ?m Pore Size: 2000 ? Cross-Linking (%DVB): 55%
Latex characteristics	Functional Group: Alkyl quaternary ammonium ion Latex Cross-Linking: 0.2% Latex Diameter: 140 nm Hydrophobicity: Medium hydrophobic
Capacity	13 ?eq (2 × 200 mm analytical column) 1 ?eq (2 × 50 mm guard column) 52 ?eq (4 × 200 mm analytical column) 4 ?eq (4 × 50 mm guard column)
Column construction	PEEK with 10-32 threaded ferrule-style end fitting. All components are nonmetallic