Cogent HPS FAQ – MicroSolv Technology Corporation

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Do you have a specific set of limits for metals in the HPS silica? If so, what are they and which metals do you test for?

Yes (see details below) Metal p.p.m. Levels specification Found Na <10 <1 Al <10 <1 Fe <10 <1 Ti <10 <1 K <10 None detected

What are Cogent HPS™ HPLC Columns?

Cogent HPS™ is a stationary phase (both bonded and non bonded) that is designed for applications that require high purity silica. Metal content in Cogent HPS™ is extremely low and this produces very good stability and “deactivates” the silica for use with basic analytes. A very smooth and uniform silica surface results for mechanical strength […]

What is the biggest difference between Cogent HPS™ columns and most HPLC columns available on the market today?

The Cogent HPS™ silica has a very narrow particle size range and consequently the column efficiency and durability of the phase improves significantly. Additionally, the bonded phases have been manufactured under strict anaerobic conditions and unique bonding techniques have been employed. For this reason the bonded phases are covered uniformly on the silica surface producing […]

What is the column to column reproducibility for Cogent HPS columns?

These columns have been determined to be very reproducible from column to column, from batch to batch by customers from all parts of the world.

What is the pH stability of Cogent HPS™ HPLC columns?

These columns are extremely stable in from pH 2.0 to pH 8.6. Depending on the concentration of the acid or base will determine if these columns would be stable outside of this range. Click here to view more information about Cogent HPS HPLC columns

Category: Cogent HPS FAQ

Do you have a specific set of limits for metals in the HPS silica? If so, what are they and which metals do you test for?

What are Cogent HPS™ HPLC Columns?

What is the biggest difference between Cogent HPS™ columns and most HPLC columns available on the market today?

What is the column to column reproducibility for Cogent HPS columns?

What is the pH stability of Cogent HPS™ HPLC columns?

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