
VOCs pretreatment, rapid-heating trap, lossless centrifugal dehydration
⒈Core heating and trapping: The trap adopts direct resistance heating without wrapping, featuring precise temperature control, rapid heating and cooling. It takes no more than 40 seconds to cool down from 250℃ to 40℃, with no cold spot adsorption and high-boiling-point residue removal.
⒉Dehydration and detection performance: Spiral centrifugal physical dehydration, with a dehydration rate of ≥ 96% and no loss of target substances; It greatly enhances VVOC response; The purge tube is heated by light radiation, making it suitable for highly polar VOCs, and is provided with an automatic defoaming function to prevent foam from contaminating the lines.
⒊Automatic standard addition and curve preparation: The internal standard is accurately added via electronic pressure control, completed within 1 second with no loss; It can automatically prepare calibration curves for target compounds and surrogates, reducing manual operations.
⒋Anti-contamination design: Separate flow paths for water and soil, with the soil line optimized to prevent blockage, reducing cross-contamination and residue.
⒌Operation and automation: The main unit and autosampler share one integrated operating software, with simple interaction; It supports up to 110 samples for continuous analysis, with automatic dilution and automatic cleaning, can be linked to chromatographic instruments, and provides traceable and compliant data.
⒍Cost advantage: no liquid nitrogen cooling equipment is required, and the built-in automatic cleaning function makes operation and maintenance simple and reduces cost.
⒎Applications and configuration standards: used for VOC pre-treatment enrichment in water and soil, and compatible with gas chromatographs and GC-MS; Standard configuration includes main unit, 72-position sample tray, trap, dehydration module, and chromatographic interface; It meets VOC testing standards HJ 605-2011、HJ 1020-2019, and is suitable for laboratories for environmental monitoring, third-party testing, and soil remediation.
Laboratory

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