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Dionex IonPac AS18-4μm 陰離子交換柱

更新時(shí)間:2019-11-20

簡(jiǎn)要描述:

Dionex IonPac AS18-4μm 陰離子交換柱
可在色譜分析速度和分辨率之間達(dá)到*平衡。

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Dionex  IonPac  AS18-4μm 陰離子交換柱

 

使用新型 Thermo Scientific? Dionex? IonPac? AS18-4μm 陰離子交換柱,可在色譜分析速度和分辨率之間達(dá)到*平衡。 這種高載量、高效率色譜柱可對(duì)不同樣品基質(zhì)中的無(wú)機(jī)陰離子實(shí)現(xiàn)分離。 這是首xuan的氫氧化物選擇性色譜柱,可按照美國(guó) EPA 方法 300.0 (A) 和 300.1,對(duì)飲料和廢水樣品中的無(wú)機(jī)陰離子進(jìn)行較快速的合規(guī)監(jiān)測(cè)。 與 Thermo Scientific? Dionex? IonPac? AS18-Fast 色譜柱相比,新型 Dionex IonPac AS18-4μm 陰離子交換柱可使用更小的樹(shù)脂顆粒以提高峰效率,從而縮短運(yùn)行時(shí)間、提高峰積分的準(zhǔn)確度并獲得更可靠的結(jié)果。

 

 

 

描述

分離常見(jiàn)無(wú)機(jī)陰離子的速度zui快并且分辨率極jia

通過(guò)使用更小的樹(shù)脂顆粒和更短的柱規(guī)格,這種色譜柱可提供zui高的峰效率并能對(duì)常見(jiàn)無(wú)機(jī)陰離子實(shí)現(xiàn)*分離,因此可用于環(huán)境水體的快速分析。

分析各種基質(zhì)中的常見(jiàn)無(wú)機(jī)陰離子和低分子量有機(jī)酸

  • 可對(duì)常見(jiàn)無(wú)機(jī)陰離子進(jìn)行超快速等度分離,不到 3 分鐘即可完成

  • 按照美國(guó) EPA 方法 300.0 (A) 所述,對(duì)飲用水中的常見(jiàn)陰離子進(jìn)行合規(guī)監(jiān)測(cè)

  • 峰效率高且分辨率增加,從而實(shí)現(xiàn)更加*的積分并獲得更可靠的結(jié)果

  • 可提供與 Dionex IonPac AS18-Fast 柱相同的選擇性,所以應(yīng)用可輕松轉(zhuǎn)移至 4μm 柱

  • 與 Dionex IonPac AS18-Fast 柱相比,運(yùn)行時(shí)間縮短,但分辨率不受影響

  • 可對(duì)各種樣品基質(zhì)中的無(wú)機(jī)陰離子和低分子量酸實(shí)現(xiàn)分離

  • 與有機(jī)溶劑兼容,從而可改善分析物的溶解度,改變柱選擇性,或者對(duì)色譜柱進(jìn)行有效凈化

在高壓離子色譜系統(tǒng)中使用 4μm 柱

通過(guò)使用更小的樹(shù)脂顆粒,可達(dá)到更高的分辨率,并產(chǎn)生超過(guò) 3000 psi 的柱反壓。 當(dāng)在 10μL/min 的標(biāo)準(zhǔn)流速下運(yùn)行 Dionex IonPac AS18-4μm 毛細(xì)管柱時(shí),一臺(tái)能夠在高達(dá) 3000 psi 的壓力下運(yùn)行的離子色譜系統(tǒng)*夠用。 然而,為了發(fā)揮快速色譜運(yùn)行的優(yōu)勢(shì),在使用高流速時(shí),需要一臺(tái)高壓毛細(xì)管離子色譜系統(tǒng),例如,Thermo Scientific? Dionex? ICS-5000+ HPIC 或 Thermo Scientific? Dionex? ICS-4000 HPIC。 Dionex IonPac AS18-4μm 微孔柱和標(biāo)準(zhǔn)孔柱正常工作時(shí),Dionex ICS-5000+ HPIC 系統(tǒng)*。

使用適合您實(shí)驗(yàn)室的產(chǎn)品規(guī)格

較短的 150mm AS18-4μm 色譜柱有助于加快運(yùn)行速度,同時(shí)較小的粒徑可保持更高分辨率的分離;保護(hù)柱有 3 種規(guī)格可選:

  • 4x150mm 標(biāo)準(zhǔn)孔柱與 4x30mm 保護(hù)柱配套使用

  • 2x150mm 分析柱與 2x30mm 保護(hù)柱配套使用

  • 0.4x150mm 毛細(xì)管柱與 0.4x35mm 保護(hù)柱配套使用

毛細(xì)管柱的淋洗液需要量減少,從而降低了運(yùn)行成本

毛細(xì)管柱可通過(guò)節(jié)省淋洗液而顯著降低運(yùn)行成本和廢液處置成本。 Dionex IonPac AS18-4μm 毛細(xì)管柱與對(duì)應(yīng)的標(biāo)準(zhǔn)孔柱和微孔柱裝填同種材料,從而可提供相同的性能。 由于運(yùn)行毛細(xì)管系統(tǒng)時(shí)的淋洗液流速僅為標(biāo)準(zhǔn)孔系統(tǒng)的 1%,因此運(yùn)行成本得以降低。 毛細(xì)管柱可與 Thermo Scientific? Dionex? ICS-4000 和 ICS-5000+ 毛細(xì)管系統(tǒng)配合使用。

需要更高的分辨率還是更快的分離速度?

  • 如果您需要對(duì)更復(fù)雜的樣品基質(zhì)達(dá)到更高分辨率的分離,請(qǐng)選擇較長(zhǎng)的 250mm Dionex? IonPac? AS18 氫氧化物選擇性陰離子交換柱

  • 較短的 150mm Dionex IonPac AS18-Fast 柱與較長(zhǎng)的 250mm 柱相比,在對(duì)相對(duì)更干凈的基質(zhì)進(jìn)行分析時(shí)運(yùn)行速度更快、且較短色譜柱可在 3000 psi 下運(yùn)行。

 

Dionex  IonPac  AS18-4μm 陰離子交換柱

訂貨信息:

Analytical   Columns
Dionex IonPac AS18-4μm Capillary Column (0.4 x 150 mm)   082314   
Dionex IonPac AS18-4μm Analytical Column (4 x 150 mm)   076034
Dionex IonPac AS18-4μm Analytical Column (2 x 150 mm)   076036
Guard   Columns
Dionex IonPac AG18-4μm Capillary Guard Column (0.4 x 35 mm)   076033
Dionex IonPac AG18-4μm Guard Column (4 x 30 mm)   076035
Dionex IonPac AG18-4μm Guard Column (2 x 30 mm)   076037

 

 

Fast, High-Resolution Determination of Inorganic Anions and Low-Molecular-Weight Organic Acids

Attain the optimal combination of chromatographic speed and resolution using the new Thermo Scientific Dionex IonPac AS18-4μm anion-exchange column. This high-capacity, high-efficiency column provides excellent resolution of inorganic anions in diverse sample matrices. Compared to the previous Dionex IonPac AS18-Fast column, the new ion-exchange column uses smaller resin particles for more efficient separations resulting in faster run times, more accurate peak integration and more reliable results.The Dionex IonPac AS18-4μm anion-exchange column is the hydroxide-selective column of choice for compliance monitoring of inorganic anions in drinking water and wastewater samples in accordance with US EPA Methods 300.0 (A) and 300.1. 

The new Dionex IonPac AS18-4μm column offers the same selectivity as the Dionex IonPac AS18-Fast column, but with the reduced particle size, this column can separate the common inorganic anions in significantly less time without loss of resolution. Applications run on the Dionex IonPac AS18-Fast column can be easily transferred to the Dionex IonPac AS18-4μm column with the benefit of reduced run time with no loss in resolution. The Dionex IonPac AS18-4μm column is available in capillary format (0.4 × 150 mm), microbore format (2 × 150 mm) and standard bore format (4 × 150 mm). The capillary format offers the advantage of reduced eluent consumption, thereby lowering operating costs.  

  • Decrease run times, increase sample throughput without loss of resolution

  • Super fast isocratic separation of the common inorganic anions (less than 3 min) 

  • Recommended hydroxide-selective column for inorganic anions in diverse sample matrices

  • Inorganic anion and low-molecular weight organic acids in complex sample matrices

  • Meets performance requirements specified in US EPA Method 300.0 (A)

The smaller resin particles used in the Dionex IonPac AS18-4μm column produce increased back pressure. When operating the Dionex IonPac AS18-4μm capillary column at the standard flow rate of 0.010 mL/min, 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 capillary IC system, such as the Thermo Scientific Dionex ICS-5000+ HPIC or the Thermo Scientific Dionex ICS-4000 HPIC is required. The Dionex ICS-5000+ HPIC systems is required for standard operation of the Dionex IonPac AS18-4μm microbore and standard bore columns.

Dionex IonPac AS18-4μm Anion-Exchange Column Specifications
DimensionsDionex IonPac AS18-4μm Capillary Column:
0.4 × 150 mm
Dionex IonPac AG18-4μm Capillary Guard Column:
0.4 × 35 mm
Dionex IonPac AS18-4μm Analytical Columns:
4 × 150 mm, 2 × 150 mm
Dionex IonPac AG18-4μm Guard Columns:
4 × 30 mm, 2 × 30 mm
Maximum Operating Pressure5000 psi (34 MPa)
Mobile Phase CompatibilitypH 0–14; 0–100% HPLC solvents
Latex CharacteristicsFunctional Group: Alkanol quaternary ammonium ion
Latex Crosslinking: The effective crossslinking after functionalization is 8%
Latex Diameter: 65 nm
Hydrophobicity: Low
Substrate CharacteristicsBead Diameter: 4 μm supermacroporous resin
Pore Size: 1500 ?
Crosslinking (%DVB): 55%
Capacity

1.71 μeq (0.4 × 150 mm capillary column)
0.07 μeq* (0.4 × 35 mm capillary guard column)
171 μeq (4 × 150 mm analytical column)
6 μeq* (4 × 30 mm guard column)
45 μeq (2 × 150 mm analytical column)
1.5 μeq* (2 × 30 mm guard column)

*Guards are packed with a low-capacity microporous resin.

Column ConstructionPEEK with 10-32 threaded ferrule-style end fittings.
All components are nonmetallic.

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