Electron Capture Detector (ECD) For Gas Chromatograph

Model

Name of Detector

Technical Standard

Characteristics

GC-122-TCD

TCD

Sensitivity S≥2500mV.ml/mg

(Carrier gas H2;Sample:Hexadecane

);

Baseline noise≤20μV;

Linear range≥104

Use of rhenium tungsten wire, constant current source, differential amplifier circuit, micro-pool size.

GC-122-ECD

Electron capture detector

Limit of detection:Mt≤2×10-13g/s

(Sample:Hexaneσ-666);

Baseline noise:≤10μA

Linear range:≥103

Nickel -63 radioactive sources, the working temperature reach to 350 °C. Have extra high sensitivity in halogen compounds

GC-122-FPD

Flame photometric detector

Detection limit: For P:

Mt≤2×10-11g/s

Sulf:Mt≤1×10-10g/s

Baseline noise:≤10μA

Linear range:phosphorus≥103  Sulf≥102

Double-flame structure, using optical fiber as the optical signal transmission line , greatly reduce the impact of electrical components under the high temperature ,used in the analysis of the trace phosphorus, sulfur