Abstract:The development method of a chlorobenzene gas standard are described.Chlorobenzene gas standard is prepared by gravimetric method and is intercompared to the existing gas cylinder standards using gas chromatography with a hydrogen flame ionization detector.The linear regression analysis show excellent agreement among the standards for chlorobenzene.As a result of with-in homogeneity,the data show that chlorobenzen are homogeneous in the cylinder,the long-term stability of the gas standard is as long as 12 months.The certified value of developed chlorobenzene gas standard is 1~5μmol/mol,and the relative expanded uncertainty is 5% at the 95% confidence interval for chorobenzene,it agree with the similar standard gas from Scott Specialty Gases.
李宁, 郭健, 樊强, 王帅斌, 王倩, 田文. 氯苯标准气体的研制[J]. 计量学报, 2013, 34(1): 68-71.
LI Ning, GUO Jian, FAN Qiang, WANG Shuai-bin, WANG Qian, TIAN Wen. Development of Gas Standard of Chlorobenzene. Acta Metrologica Sinica, 2013, 34(1): 68-71.
[1] Schmidt W P, Rook H L. Preparation of Gas Cylinder Standards for the Measurement of Trace Levels of Benzene and Tetrachloroethylene[J]. Anal Chem, 1983, 55(2): 290.
[2] Rhoderick G C, Zlellnski W L. Gas Standards Containing Halogenated Compounds for Atmospheric Measurements[J]. Environ Scl Technol, 1993, 27(13):2849-2854.
[3] 吴忠祥,彭洪俊,田文,等.氮气中苯系物(高压)标准气体的研制[J].低温与特气, 2001, 19(4):29.
[4] 李宁,王倩,郭健,等.氮气中六种氯代烷烃混合标准气体的研制[J].色谱,2010,28(5):521-524.
[5] ISO 6142:2001, Gas analysis——Preparation of calibration gas mixtures——Gravimetric[S].
[6] ISO Guide 35:2006, Reference materials——General and statistical principles for certification[S].
[7] ISO 6143:2001, Determination and Checking the Composition of Calibration Gas Samples[S].
[8] GB/T15000.3——2008,标准样品定值的一般原则和统计方法[S].