BGB USP Phase Listing
Search this reference to relate documented BGB selectivities to common USP stationary-phase categories. Exact column part numbers depend on phase, particle size and dimensions.
| USP code | General description | BGB reference | Mode | Part number |
|---|---|---|---|---|
| L1 | Octadecylsilane (C18) bonded to porous silica | Scorpius C18e-HP and Taurus C18T on specified products | Reversed phase | Reach Akira with the required column family and dimensions |
| L7 | Octylsilane (C8) bonded to porous silica | Taurus C8T where specified | Reversed phase | Reach Akira with the required particle size and dimensions |
| L26 | Butylsilane (C4) bonded to porous silica | Taurus C4T where specified | Reversed phase | Reach Akira with the required particle size and dimensions |
USP phase technical review
USP classifications are selection references, not a guarantee of identical chromatographic performance. Review the current monograph and reach Akira for assistance with exact method requirements and system-suitability criteria before changing columns.
Frequently Asked Questions
Technical answers for common BGB column selection, compatibility and quotation questions.
What does a USP column classification indicate?
A USP classification describes a broad stationary-phase chemistry used in compendial methods. It does not guarantee that all columns within the same USP code will produce identical selectivity.
Can any column with the same USP code replace the original column?
Not automatically. Surface chemistry, carbon load, endcapping, particle morphology and manufacturing differences can affect retention and selectivity even within the same USP category.
What information is needed for USP column equivalency?
Provide the monograph, USP code, existing column brand and part number, dimensions, particle size, mobile phase and system-suitability requirements.
Why should method suitability be documented after changing columns?
A replacement column may alter resolution, retention time, tailing or efficiency. The laboratory must demonstrate system suitability and comply with current pharmacopoeial and validation requirements.
Can Akira assist with USP phase selection?
Yes. Akira can help compare published stationary-phase information and request a suitable BGB option for technical evaluation.
Does the USP code specify column dimensions?
No. USP phase classifications describe stationary-phase chemistry. Column length, internal diameter and particle size are separate method parameters.
Are USP classifications permanent?
Pharmacopoeial content and manufacturer product ranges can change. Users should review the latest monograph and reach Akira for current manufacturer documentation.
What should be included in a USP column quotation request?
Include the USP code, monograph or analyte, current column part number, dimensions, particle size, quantity and required delivery location.