Microcapillary Cartridges - Uncoated and Coated
Dual-pass microcapillary cartridges for accurate size and viscosity analysis
Microcapillary cartridges comprise the capillary itself which is assembled into a plastic insert with two precision windows, to allow easy and direct mounting into the detector head. Two types of microcapillary are available: both are lengths of fused silica capillary externally coated with polyimide, and with two windows at fixed positions. Capillaries are supplied uncoated internally for general use. An alternative is with an internal coating of hydroxypropylcellulose, for samples where sticking to the capillary wall may be an intractable experimental issue.