HPLC Detector Flow Cell Assembly
Quartz flow cell assembly for UV-Vis detectors in HPLC systems under 9027.50.40, enabling precise light path measurement during chromatographic separation. Critical for detecting analytes in biochemical research. Classified in 9027.90.56.50 as electrical instrument part per chapter rules.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as standalone laboratory glassware without electrical connections
Lab glassware not dedicated to specific instruments classified by material composition.
If for non-electrical HPLC components
Parts of same instruments but lacking electrical functionality go to other subheading.
If contains pressure-regulating valves
Valve components take precedence over instrument accessory classification.
Not sure which classification is right?
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Import Tips & Compliance
• Provide optical path length specs and material certificates (quartz/glass) for proper HTS verification
• Ensure FDA registration if destined for pharmaceutical quality control labs
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Platinum electrode cell with electrical leads for conductivity detection in ion chromatography (9027.50.40). Essential for electrolyte analysis. 9027.90.56.50.
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Printed circuit board with firmware for instrument control in 9027.50.40 HPLC systems. Manages data acquisition and method programming. Electrical part under 9027.90.56.50.
Backpressure Regulator Electrical Module
Electrically adjustable backpressure regulator for consistent flow in 9027.50.40 HPLC. Includes solenoid valve and sensor feedback. 9027.90.56.50 accessory.
Chromatography Column Holder for HPLC Systems
This precision-machined holder secures chromatography columns in high-performance liquid chromatography (HPLC) systems classified under 9027.50.40. It ensures stable alignment during analysis of chemical compositions in pharmaceuticals and research labs. Falls under 9027.90.56.50 as a dedicated accessory for these electrical chromatographic instruments.
Sample Injector Valve for Liquid Chromatographs
High-pressure injection valve for precise sample introduction into HPLC systems of 9027.50.40. Features electrical actuation for automated analysis workflows in environmental testing. Qualifies under 9027.90.56.50 as accessory of electrical chromatographic apparatus.
UV Detector Lamp Module for HPLC
Deuterium/mercury lamp assembly with electrical ballast for UV detection in 9027.50.40 HPLC systems. Provides stable light source for quantitative analysis. 9027.90.56.50 classification for electrical spectroscopic components.