Perfluorohexane specific gas chromatography column

NegotiableUpdate on 05/07

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Overview

Shandong Xinzhiheng Instrument supplies dedicated gas chromatography columns for perfluorohexane, product name: KB-PFXN #160; #160; 150m #215; 0.32mm #215; 2.00 μ m chromatographic column fixative: #160; 60% phenyl perfluorooctyl polysiloxane

Product Details

Shandong Xinzhiheng Instrument SupplyPerfluorohexane specific gas chromatography columnProduct Name: KB-PFXN 150m × 0.32mm × 2.00 μ m Column Fixed Liquid: 60% phenyl perfluorooctyl polysiloxane

Perfluorohexane fire extinguishing agent GB45944-2025Analysis steps:

5.1 Sampling

The sampling container is made of high-density polyethylene material. Before sampling, the sample container and sampling equipment should be dried and sampled according to the provisions of GB/T 6680. Samples should be sealed and stored in a timely manner, away from light and water.

Sampling personnel should wear appropriate protective equipment to avoid contact and inhalation of samples.

5.2 Purity of Perfluorohexane

5.2.1 Instruments

Gas chromatograph: equipped with a hydrogen flame ionization detector (FID), under the chromatographic conditions specified in GB/T 9722, using benzene as the sample, the sensitivity of the whole machine is measured by the detection limit, and the detection limit should not exceed 5 × 10-10g/s。

5.2.2 Test conditions

The typical operating conditions for chromatographic testing are shown in Table 2, and other chromatographic columns and operating conditions that can achieve the same degree of separation can also be used.

5.2.3 Test steps

The experimental steps are as follows:

a) Start the gas chromatograph and adjust the instrument according to the conditions specified in 5.2.2, so that the chromatographic testing conditions of the instrument are stable and meet the requirements of 5.2.2;

b) Take 0.2 μ L of the sample to be tested using an injector and inject it into the chromatograph;

c) Calculate the purity of perfluorohexane using area normalization calculation method; The typical chromatogram and mass spectrum of perfluorohexane are shown in Appendix A;

d) Take the arithmetic mean of three parallel test results as the measurement result, and the absolute deviation of each test should not exceed 0.2%.

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