SKU: H02700-04300

Ultisil XB-SiO2, 7μm, 300Å, 1g

Regular price $5.65 USD
Sale price $5.65 USD Regular price
Sale Sold out
Unit price
/per 
This is a pre order item. We will ship it when it comes in stock.

In the packing and purification processes, the packing material undergoes significant mechanical pressure. Therefore, the mechanical strength requirements for packing materials are generally higher than those for analytical-grade packing materials. The mechanical strength of the packing material is a crucial quality indicator, as it directly influences the lifespan and production process of the material. Frequent packing and unpacking demand exceptionally stable packing materials. Insufficient mechanical strength can lead to packing material breakage, resulting in increased column pressure, decreased column efficiency, and compromised performance. This underscores the need for high mechanical strength and robust bonding techniques to extend the lifespan of packing materials, thereby enhancing customer production efficiency and reducing costs associated with separation purification.

Pairs well with

Welch Unique Patented Technology

During packing and separation/purification processes, the packing material undergoes significant mechanical pressure. Therefore, the mechanical strength requirements for preparative packing materials are usually higher than those for analytical use. Mechanical strength is an extremely important quality indicator that directly impacts the lifespan of the packing material and the production process. Frequent column packing requires highly stable materials; insufficient mechanical strength can cause particle breakage, leading to increased column pressure, decreased column efficiency, and compromised performance. High mechanical strength combined with robust bonding technology extends the packing material’s lifespan, ultimately enhancing production efficiency and reducing separation and purification costs for customers.

    Ultra-High Purity Fully Porous Spherical Silica (Purity >99.999%): Ensuring High Separation Efficiency

    Uniform Particle Size and Pore Size Distribution for Optimal Separation Efficiency and Higher Sample Load

    Finer particles increase theoretical plates and resolution but complicate column packing, require higher operating pressure, and lead to higher column pressure. Packing materials with a narrow particle size distribution facilitate uniform packing, resulting in a tighter and more stable column bed, reducing eddy diffusion and improving column efficiency. A narrow pore size distribution increases the effective surface area, thereby enhancing sample load capacity. Thus, uniform particle and pore size distribution are crucial for achieving excellent separation efficiency and higher sample load.


    Ultra-Low Metal Content

    Metal content is a critical factor in evaluating packing material quality. Low metal content minimizes non-specific adsorption of analytes, ensuring symmetrical peak shapes. Welch Materials’ selected silica packing materials have extremely low metal content, all below 1 ppm, as verified by third-party testing agencies. By controlling metal content at the source, we ensure the highest packing material quality.

    Excellent Batch-to-Batch Reproducibility

    Each batch of packing materials exhibits high chemical and mechanical stability, consistent pore structure, and specific surface area, ensuring long-term, continuous, and stable separation and purification processes.

    pH stability

    XB-C18 and packing materials from other brands were tested under extreme pH conditions (pH=1.3 and pH=10), with the experimental results shown below.

    Brand: Ultisil

    Phase: SILICA

    Particle Size: 7μm

    Pore Size: 300Å

    USP Classification:

    Separation Mode:

    pH Range:

    Surface Area:

    Carbon Load:

    Max.Pressure:

    Endcapped:

    Max.Temp.:

    Particle Shape: Spherical

    Product Description

    Welch Unique Patented Technology

    During packing and separation/purification processes, the packing material undergoes significant mechanical pressure. Therefore, the mechanical strength requirements for preparative packing materials are usually higher than those for analytical use. Mechanical strength is an extremely important quality indicator that directly impacts the lifespan of the packing material and the production process. Frequent column packing requires highly stable materials; insufficient mechanical strength can cause particle breakage, leading to increased column pressure, decreased column efficiency, and compromised performance. High mechanical strength combined with robust bonding technology extends the packing material’s lifespan, ultimately enhancing production efficiency and reducing separation and purification costs for customers.

      Ultra-High Purity Fully Porous Spherical Silica (Purity >99.999%): Ensuring High Separation Efficiency

      Uniform Particle Size and Pore Size Distribution for Optimal Separation Efficiency and Higher Sample Load

      Finer particles increase theoretical plates and resolution but complicate column packing, require higher operating pressure, and lead to higher column pressure. Packing materials with a narrow particle size distribution facilitate uniform packing, resulting in a tighter and more stable column bed, reducing eddy diffusion and improving column efficiency. A narrow pore size distribution increases the effective surface area, thereby enhancing sample load capacity. Thus, uniform particle and pore size distribution are crucial for achieving excellent separation efficiency and higher sample load.


      Ultra-Low Metal Content

      Metal content is a critical factor in evaluating packing material quality. Low metal content minimizes non-specific adsorption of analytes, ensuring symmetrical peak shapes. Welch Materials’ selected silica packing materials have extremely low metal content, all below 1 ppm, as verified by third-party testing agencies. By controlling metal content at the source, we ensure the highest packing material quality.

      Excellent Batch-to-Batch Reproducibility

      Each batch of packing materials exhibits high chemical and mechanical stability, consistent pore structure, and specific surface area, ensuring long-term, continuous, and stable separation and purification processes.

      pH stability

      XB-C18 and packing materials from other brands were tested under extreme pH conditions (pH=1.3 and pH=10), with the experimental results shown below.

      Specifications

      Brand: Ultisil

      Phase: SILICA

      Particle Size: 7μm

      Pore Size: 300Å

      USP Classification:

      Separation Mode:

      pH Range:

      Surface Area:

      Carbon Load:

      Max.Pressure:

      Endcapped:

      Max.Temp.:

      Particle Shape: Spherical

      Documents