PTM300-DUAL Dual-Channel Portable GC
Product Introduction
Two independent precision chromatographic channels support rapid on-site analysis of complex VOC mixtures. Configurable columns, multiposition valves and high-temperature PID detectors cover BTEX, sulfur compounds, aldehydes and ketones. The internal pump allows direct sampling and ppb-level detection without preconcentration.
FEATURES
APPLICATIONS
Technical Specifications
|
Parameter |
Specification |
|
Detection principle |
Gas chromatography with photoionization detection (GC-PID) |
|
Detection limit |
≤1 ppb (benzene) |
|
Column temperature |
Ambient to 120°C |
|
Repeatability |
≤2% |
|
Analysis time |
≤10 min for BTEX and sulfur compounds |
|
Carrier gas |
High-purity nitrogen. Internal cylinder: >6 h |
|
Battery endurance |
Internal lithium battery, 6 h |
|
Operating conditions |
−20 to 45°C, ≤95% RH, non-condensing |
|
Weight |
8 kg |
|
Dimensions (W × D × H) |
150 × 340 × 425 mm |
Carrier-gas endurance depends on configuration: the source overview states >12 h,
while its standard specification table states >6 h. Confirm the supplied cylinder and method.
COMPONENTS AND HEADSPACE SAMPLING
Occupational Chemical Analysis
Referenced regional methods: DB11/T 3050-2026 (Beijing),
DB12/T 3050-2025 (Tianjin) and DB13/T 3050-2025 (Hebei),
technical specifications for investigation of acute occupational poisoning.
Channel 1: 1 Hydrogen sulfide, 2 Methyl mercaptan, 3 Ethyl mercaptan, 4 Dimethyl sulfide, 5 Carbon disulfide.
Channel 2: 1 Ethyl acetate, 2 Dichloromethane, 3 Ethylbenzene, 4 Styrene.
Passenger-Cabin Air Analysis
Referenced method: GB/T 27630-2011, Guideline for Air Quality Assessment of Passenger Cars.
Channel 1: 1 Acetaldehyde, 2 Acetone.
Channel 2: 1 Benzene, 2 Toluene, 3 Ethylbenzene, 4 m-/p-Xylene, 5 o-Xylene, 6 Styrene.