Determination of Benzene in Drinking Water and Its Source

According to the method of determining benzene, toluene, o-xylene, m-xylene, p-xylene, styrene and cumene in drinking water and its water source by headspace-capillary column gas chromatography specified in the national standard "Sanitary Standard for Drinking Water" (GB5749-2006), the experiment was carried out by using the HS-60 automatic headspace sampler developed and produced by Beijing Beifenpu Instrument Technology Co., Ltd. The experimental results show that: the components in 8 were determined within 11min and had good separation effect. Different components can obtain good linear relationship in the concentration range of (1~100)ug/L, and the correlation coefficient (r) is 0.99~0.999. The minimum detection limits are: benzene 0.7ug/L; Toluene 1ug/L; Ethylbenzene 2ug/L; m-and p-xylene 1ug/L; Styrene 2ug/L; o-xylene 3ug/L; cumene 3ug/L. Conclusion: TP-6000 all-round headspace sampler than conventional water bath heating and then sampling analysis: high degree of automation, simple and convenient, good reproducibility, improve the sensitivity, suitable for the detection of benzene content in water

Determination of Residual Solvents in Chlorpheniramine Maleate

Residual solvents in pharmaceuticals refer to organic solvents used in the production of APIs or excipients, as well as in the preparation of formulations, but not completely removed during the process. The residual solvents of chlorphenamine maleate are mainly tetrahydrofuran, dioxane pyridine and toluene. According to the headspace-capillary column gas chromatography method for the determination of residual solvent of chlorphenamine maleate specified in the national standard "Chinese Pharmacopoeia" (2010), the TP-6000 all-energy headspace sampler developed and produced by Beijing Beifentianpu Instrument Technology Co., Ltd. was used to carry out the experiment on this specification. The experimental results showed that the components in 4 were determined within 11min and had good separation effect. The RSD% of the four components in precision experiment was less than 5%, in line with the national standard "Chinese Pharmacopoeia" (2010); Conclusion: TP-6000 all-round headspace sampler than conventional water bath heating and sampling analysis: high degree of automation, simple and convenient, good reproducibility, improve the sensitivity, suitable for the detection of residual solvent content in drugs.

North Branch Temple

Beiten Tianpu Exhibitors Laboratory Equipment Exhibition

The 18th China International Scientific Instruments and Laboratory Equipment Exhibition (CISILE2020) was held in Beijing National Convention Center on December 8-10, 2020, and has come to an end. Bei Fen Tianpu took part in the exhibition with new products. New and old customers at the exhibition site paid great attention to the products exhibited by the company. The onlookers exchanged enthusiastically and consulted continuously. Tianpu Company will continue to work hard to continuously develop more and better new products to repay customers and serve the society.

What are the characteristics of gas chromatography?

Beitentianpu with new products unveiled in Shanghai Munich

From November 16 to 18, 2020, the three-day Munich Shanghai Biochemical Exhibition has officially come to an end. This exhibition has gathered hundreds of well-known enterprises in the field at home and abroad to participate in the exhibition. It is a biennial event in the biochemical industry.