Date: 11-DECEMBER-2014 Last Updated: 11-AUGUST-2026
Short Answer - No
The standard bare fused silica capillaries offered for capillary electrophoresis (CE) applications are manufactured with a 365 µm outer diameter (OD).
This dimension is widely used across many CE instruments and applications and is the standard offering available from inventory.
Standard CE Capillary Dimensions
MICROSOLV bare fused silica capillaries for CE applications are supplied with:
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365 µm outer diameter (OD)
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Various internal diameter (ID) options, depending on application requirements
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High-purity fused silica construction
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Compatibility with common CE instrumentation
The 365 µm OD format is the most commonly used configuration for routine capillary electrophoresis workflows.
Are Other Outer Diameters Available?
Alternative capillary outer diameters may be available through custom manufacturing programs.
Custom capillary orders may be appropriate when:
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Instrument requirements differ from standard configurations
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Specialized research applications require unique dimensions
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Method development protocols specify non-standard capillary sizes
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Custom CE system configurations are being utilized
Minimum order quantities and manufacturing requirements typically apply.
Special Order Considerations
Laboratories interested in non-standard capillary dimensions should consult Customer Service regarding:
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Available outer diameters
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Manufacturing feasibility
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Minimum order quantities
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Lead times
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Custom specifications
Custom products may not be stocked and may require additional production planning.
Typical CE Applications
Bare fused silica capillaries are commonly used for:
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Capillary electrophoresis (CE)
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Pharmaceutical analysis
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Biotechnology applications
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Protein separations
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Nucleic acid analysis
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Method development
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Research laboratories
Selecting the appropriate capillary dimensions is important for achieving optimal separation performance and instrument compatibility.
Key Takeaways
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The standard CE capillary outer diameter offered is 365 µm.
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Bare fused silica capillaries are designed for capillary electrophoresis applications.
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Alternative outer diameters may be available as special-order items.
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Minimum order quantities typically apply to custom capillary manufacturing.
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Customer Service can assist with custom capillary inquiries.