Determining the Levels of Volatile Organic Pollutants in Urban Air Using a Gas Chromatography-Mass Spectrometry Method

Table 1

Compounds analyzed and method characteristics: calibration equations and coefficients of correlation, linearity range, limits of quantization and of detection, precision, and accuracy RSD (𝑛=6).

Compound	Equation	𝑅^2	Linearity range (𝜇g/m^3)	LOQ (𝜇g/m^3)	LOD (𝜇g/m^3)	Precision RSD (%)	Accuracy RSD (%)
Benzene	𝑦=0.0026×−0.00569	0.974	7–60	5	3	4.7	10.1
Toluene	𝑦=0.0055×+0.00903	0.964	13–90	3	1	11.2	9.7
Ethylbenzene	𝑦=0.0031×−0.1593	0.979	7–50	5	3	11.1	12.3
m-, p-Xylenes	𝑦=0.0050×−0.3645	0.946	10–70	5	3	13.0	11.6
o-Xylene	𝑦=0.0069×−0.4757	0.965	20–130	10	5	13.1	13.1