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High efficiency liquid phase chromatographic analyzing method of p-benzoquinone dioxime and p-nitroso phenol in p-benzoquinone dioxide industrial product

A technology of high performance liquid chromatography and p-benzoquinone dioxime, which is applied to the analysis of materials, material separation, measurement devices, etc., and can solve problems that have not been reported in the literature

Inactive Publication Date: 2005-08-03
NANJING UNIV
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Problems solved by technology

There is no literature report on the determination of p-benzoquinonedioxime content and its impurity p-nitrosophenol

Method used

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  • High efficiency liquid phase chromatographic analyzing method of p-benzoquinone dioxime and p-nitroso phenol in p-benzoquinone dioxide industrial product
  • High efficiency liquid phase chromatographic analyzing method of p-benzoquinone dioxime and p-nitroso phenol in p-benzoquinone dioxide industrial product
  • High efficiency liquid phase chromatographic analyzing method of p-benzoquinone dioxime and p-nitroso phenol in p-benzoquinone dioxide industrial product

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Embodiment Construction

[0030] 1 Instruments and reagents

[0031] 1.1 Instrument

[0032] Varian 5060 high-performance liquid chromatograph equipped with Rheodyne 7725i six-port injection valve, Waters 486 UV-visible spectrophotometric detector; Dalian Jiangshen Separation Science and Technology Company JS-3050 chromatographic workstation; Sichuan Instrument No. 4 Factory Type 3066 pen recorder. Waters Alliance 2695 high performance liquid chromatograph equipped with vacuum degasser, digital quaternary pump, 120-position autosampler, 996 UV-visible diode array (PDA) detector and Millinium 32 Chromatography management system.

[0033] 1.2 Reagents

[0034] p-Benzoquinone dioxime reference substance (95%); p-nitrosophenol reference substance (99%); methanol (chromatographically pure); mobile phase and solution water are Wahaha purified water (produced by Zhejiang Wahaha Company). All other reagents were analytically pure.

[0035] 2 Selection of high performance liquid chromatography conditions ...

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Abstract

The high efficiency liquid phase chromatographic analysis method of p-benzoquinone dioxime product and its impurity p-nitroso phenol has the conditions including: chromatographic column Kromasil C 18.5 micron of 150x4.6 mm (I. D.); flow phase comprising CH3OH 30 vol%, H2O 0-50 vol% and buffering NH4Ac-NH3 solution 20-70 vol%; flow phase flow rate 1.0 ml / min; column temperature 30 deg.c; sample amount 10 microliter; and detection wavelength 305 nm. The analysis method of the present invention has p-nitroso phenol and p-benzoquinone dioxime maintaining time of 2.27 min and 4.76 min separately, separated peak appearance, and p-nitroso phenol and p-benzoquinone dioxime detecting limit of 0.00001 mg / mL and 0.00001 mg / mL separately at S / N=3.

Description

technical field [0001] The present invention relates to the analysis of p-benzoquinonedioxime and p-nitrosophenol. Background technique [0002] P-benzoquinone dioxime is a kind of crosslinking agent, which has the characteristics of easy dispersion in the rubber compound, fast vulcanization speed, high tensile strength of the rubber compound, heat and weather resistance, ozone resistance and good electrical insulation performance, and can be used as acrylic acid barrier Polymerizing agent, metal glass hot-melt adhesive, olefin copolymer crosslinking regulator, organic monomer stabilizer and self-vulcanizing adhesive. For oxidants (such as Pb 3 o 4 , PbO 2 )有活化作用,改善聚酯纤维轮胎帘布的热阻力[参见:Russak AleksandrVladimirovich,Borejko Natalya Pavlovna,Tabaev Rakhim Garifovich,Melnikov GennadijNikolaevich,Salyakhov Danis Ravilovich(Nizhnekamskoe proizvodstvennoe Ob'edinenie“Nizhnekamskneftekhim”,Estonia)Russ,RU 2,039,757 (Cl.C08F2 / 42), 20 Jul 1995, SUAppl.5,042,180, 15 May 1992 (Russ); Go...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/26G01N30/60
Inventor 练鸿振李丹妮刘雯雯
Owner NANJING UNIV
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