
( Brand: Dionex ), ( Manufacturer Part Number: 170419-2.5-H ), ( Model: 057086 ), ( Unit Type: Unit ), ( Unit Quantity: 48 )
The Dionex 170419-2.5-H 48/pk Thermo Scientific OG-500 GC Column is a high-performance, narrow-bore gas chromatography (GC) column designed for the separation and analysis of volatile and semi-volatile organic compounds. This particular model, with the part number 170419-2.5-H, is a 2.5-meter long, 0.25-millimeter internal diameter (ID) column, packed with 50% phenyl, 30% methyl, 10% cyanopropyl, and 10% diethylamino stationary phase. It comes in a pack of 48 columns.
The OG-500 stationary phase is designed to provide excellent separation efficiency and selectivity for a wide range of organic compounds, making it an ideal choice for applications in environmental, food, and petrochemical analysis. The column's narrow-bore design provides increased efficiency, sensitivity, and peak capacity compared to standard GC columns.
The Thermo Scientific OG-500 GC Column is compatible with most GC systems and can be used with both split and splitless injection techniques. It is designed to operate over a temperature range of 35 C to 300 C, making it suitable for a variety of analytical applications.
Each column is housed in a protective, leak-proof cartridge, specifically the OnGuard 2.5cc cartridge, which ensures safe and reliable handling during storage and transportation. The cartridge is designed to minimize the risk of contamination and ensure consistent column performance. The 2.5cc cartridge size is a common size used in GC analysis and provides an adequate volume for sample injection.
The Dionex 170419-2.5-H 48/pk Thermo Scientific OG-500 GC Column is a high-quality, versatile, and reliable tool for GC analysis, delivering accurate and reproducible results for a wide range of applications. Its narrow-bore design, combined with the high-performance OG-500 stationary phase, provides excellent separation efficiency, sensitivity, and peak capacity. The protective OnGuard 2.5cc cartridges ensure safe and reliable handling, making this column a valuable addition to any GC laboratory.
This analysis aims to provide an insightful comparison of Dionex 170419-2.5-h 48/pk, Thermo Scientific 057086, and OnGuard 2.5cc columns, with a focus on their applications in High-Performance Liquid Chromatography (HPLC).
Dionex 170419-2.5-h 48/pk:1. Proven track record: Dionex columns have a long history of successful applications in HPLC separations, particularly in the field of ion exchange chromatography.
2. Versatile: These columns can accommodate various mobile phase pH ranges and are suitable for both strong and weak acid ion exchange.
3. High capacity: The large particle size (2.5 m) allows for increased loading capacity and faster analysis times.
Cons:1. Limited compatibility: These columns may not be suitable for all HPLC applications, specifically those requiring high-resolution separations or those with non-ionic analytes.
2. High cost: Compared to other commercially available columns, Dionex columns may be more expensive due to their reputation and specialized applications.
Thermo Scientific 057086:1. Broad applicability: Thermo Scientific columns cater to a wide range of HPLC applications, including reversed-phase, normal-phase, and ion exchange chromatography.
2. Consistent performance: These columns offer consistent and reliable results, ensuring high reproducibility and precision.
3. Cost-effective: Thermo Scientific columns tend to be more affordable compared to Dionex columns, making them a popular choice for laboratories with budget constraints.
Cons:1. Limited capacity: The smaller particle size (3 m) of Thermo Scientific columns may result in lower loading capacities and longer analysis times compared to larger particle size columns.
2. Compatibility issues: Some users have reported compatibility issues with certain mobile phases, which may require additional optimization efforts.
OnGuard 2.5cc:1. High resolution: OnGuard columns are renowned for their high resolution and excellent separation efficiency, making them ideal for applications requiring high-resolution separations.
2. Long column life: The high-quality fused-silica columns offer extended column life, reducing the need for frequent replacements.
3. Compatibility: OnGuard columns are suitable for a wide range of HPLC applications, including reversed-phase, normal-phase, and ion exchange chromatography.
Cons:1. Limited capacity: The smaller particle size (5 m) of OnGuard columns results in lower loading capacities and longer analysis times compared to larger particle size columns.
2. Higher cost: OnGuard columns are generally more expensive than other commercially available columns due to their high-performance characteristics.
Conclusion:Each of these columns offers unique advantages and disadvantages, with Dionex columns providing high capacity and versatility, Thermo Scientific columns offering broad applicability and cost-effectiveness, and OnGuard columns delivering high resolution and extended column life.
Recommendation:The choice between these columns ultimately depends on the specific requirements of your HPLC application. If high capacity and versatility are your primary concerns, Dionex columns may be the best choice. For a more cost-effective solution with broad applicability, Thermo Scientific columns might be the preferred option. If high-resolution separations are essential, OnGuard columns should be considered, despite their higher cost.
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