Spectrophotometric Determination of Carbon Disulphide in the Workplace Air

Table 1

Base parameters of CS₂ determination (in the absorbed substance).

Parameter	Method A	Method B
	(DTNB)	(BTC)
Molar absorptivity (L⋅mol^−1⋅cm^−1)	2.4⋅10^4	2.0⋅10^4
Detection limit (μg⋅mL^−1)	0.1	0.2
Determination limit (μg⋅mL^−1)	0.2	0.6
Sandell’s sensitivity (μg⋅cm^−2)	0.002	0.004
Standard deviation σ	0.007	0.015
Linear regression (𝑦=𝑏𝑥+𝑎)
Slope 𝑏	0.3138	−0.2639
Intercept 𝑎	0.2318	−0.1435
Correlation coefficient 𝑟	0.9884	0.9983