QL-CHROMA3700 Gas Chromatography – Quadrupole Mass Spectrometer
The QL-CHROMA3700 GC-MS is a high-performance Gas Chromatography–Quadrupole Mass Spectrometer designed for advanced analytical laboratories. With a wide 1.5–1200 u mass range, high sensitivity (1 pg OFN, S/N >1500:1), ultra-stable mass accuracy (±0.10 u / 48 h), and a fast 120°C/min GC oven, it delivers reliable qualitative and quantitative analysis for VOCs, SVOCs, pesticides, pharmaceuticals, environmental samples, and industrial chemicals.
OVERVIEW
Description
The QL-CHROMA3700 is a high-performance Gas Chromatography–Quadrupole Mass Spectrometer. It is designed for advanced analytical laboratories requiring reliable, high-sensitivity results. Equipped with a precision quadrupole mass analyzer, fast GC oven technology, and ultra-stable mass accuracy, it delivers dependable qualitative and quantitative performance. It is efficient across VOCs, SVOCs, pesticides, pharmaceuticals, industrial chemicals, and environmental samples.
Its intelligent workflow software supports automated tuning, peak identification, and NIST library matching. Additionally, it ensures regulatory-ready quantitation for efficient daily operation. The QL-CHROMA3700 offers flexible sampling options—including liquid injection, headspace, and purge-and-trap. It adapts seamlessly to both routine testing and complex analytical challenges.
Technical Specifications
Mass Spectrometer
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Mass range: 1.5–1200 u
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Ionization: EI (70 eV), optional CI
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Sensitivity: 1 pg OFN (S/N ≥1500:1)
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Resolution: unit-mass resolution
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Mass stability: ±0.10 u / 48 h
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Scan rate: up to 10,000 u/s
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Detector: high-energy dynode electron multiplier
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Vacuum: turbomolecular + mechanical pump
Gas Chromatograph
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Inlet types: split / splitless / pulsed modes
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Max inlet temperature: 450°C
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EPC accuracy: ±0.001 psi
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Oven range: RT+4°C to 450°C
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Heating rate: 120°C/min
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Cooling: 450°C → 50°C in ~6 min
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Column compatibility: 0.13–0.53 mm ID
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Split ratio: up to 12,500:1
Autosampler
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Modes: Liquid / Headspace
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Capacity: ≥70 vials
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Cooling: down to –10°C
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Automated IS addition
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Programmable dilution
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Hot water rinse
Purge & Trap System
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EPA 524.4, 502.2 compatible
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Purge temp: 20–90°C
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Trap cooling: to 0°C
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Fast desorption to ~300°C
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Moisture control module
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Carrier gas: He or N₂
Applications
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VOC analysis in drinking water and wastewater
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Environmental pollutants and industrial organics
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Food safety and packaging residue detection
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Pharmaceutical impurities and degradation studies
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General chemical and material research
Working Principle
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GC Separation
Samples vaporize and travel through a temperature-controlled capillary column, separating by volatility. -
Ionization & Mass Filtering
EI/CI ionization and quadrupole filtering isolate ions by m/z. -
Detection & Identification
High-sensitivity detector collects ion signals, matched with NIST libraries for identification and quantification.
Warranty & Support
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12-month full hardware & software coverage
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Remote diagnostic support
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Spare parts availability
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Calibration & verification kits available













