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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(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。　　
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(duì)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。

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IonPac Fast Anion IIIA Hydroxide-Selective Anion-Exchange Column

Rugged and Reliable Column for Rapid Determination of Phosphoric and Citric Acids in Colas

This hydroxide-selective anion-exchange column is specifically designed for the determination of phosphoric and citric acids in cola soft drinks. Its capacity and selectivity allows rapid analysis of these acids in less than 7 minutes.

Use with the Eluent Generator for simplified Reagent-Free IC operation.
The 3 mm i.d. configuration provides economical operation.
Combine with the ASRS^? 300 suppressor for low background and enhanced sensitivity.
Compatible with organic solvents.

The Fast Anion IIIA is optimized for a 30 °C operating temperature to ensure reproducible retention times in all environmental conditions. It is compatible with organic solvents to enhance analyte solubility, modify column selectivity, or allow effective column cleanup. The Fast Anion IIIA column is recommended for use with the Eluent Generator, requiring only a deionized water source to produce potassium hydroxide eluent.

The cola samples may require sample pretreatment with sonication to remove carbonation. Sample dilution of cola syrups is recommended prior to analysis to ensure optimum column life. These acids can be analyzed in less than 7 minutes using an isocratic potassium hydroxide eluent delivered by an Eluent Generator in combination with suppressed conductivity detection.

IonPac Fast Anion IIIA Anion-Exchange Column Specifications
Dimensions	IonPac Fast Anion IIIA Analytical Column: 3 × 250 mm IonPac Fast Anion IIIA Guard Column: 3 × 50 mm
phase compatibility	pH 0–14; 0–100% HPLC solvents
Ion-exchange group	Functional Group: Alkanol quaternary ammonium ion
Maximum operating pressure	3000 psi
Functional group characteristics	Hydrophobicity: Ultralow hydrophobic
Capacity	55 ?eq (3 × 250 mm analytical column) 1.0 ?eq (3 × 50 mm guard column)
Column construction	PEEK with 10-32 threaded ferrule style end fittings. All components are nonmetallic.
Substrate characteristics	Bead Diameter and Pore Size: 7.5 ?m (3 × 250 mm); supermacroporous resin (2000 ?) 11 ?m (3 × 50 mm); microporous resin (<10 ?) Cross-Linking (%DVB): 55%