Characterization of Odorous Compounds (VOC and Carbonyl Compounds) in the Ambient Air of Yeosu and Gwangyang, Large Industrial Areas of South Korea

Table 4

Interlaboratory comparison of the concentration of same carbonyl compounds analyzed at author’s laboratory (Yeungnam University, YNU) and another laboratory (Suncheon College, SCC).

Compounds	Sample number	MDP^(1) (%)	MRE I^(2) (%)	MRE II^(3) (%)	^(4)	-test ( value)	Paired -test ( value)
Formaldehyde	90	27.8	23.9	37.8	0.94^*(5)	0.2	0
Acetaldehyde	90	18.5	15.3	25.6	0.97*	0.46	0

MDP (mean duplicate precision, %) = (%).
⁽²⁾MRE I (mean relative error, %) = (%).
⁽³⁾MRE II (mean relative error, %) = (%).
⁽⁴⁾: correlation coefficient.
^(5)*Correlation coefficients are significant at a level of 0.05.