Skip to main content

Table 5 Average CV obtained on the determinations for each element and each paint colour

From: Unveiling Harriet Backer: ICP–OES study for the characterisation of the colour tubes from her original paint box

Element Violet Blue Green Yellow Yellowish-Red Brown White
Al 0.5%* 0.9% 2.6% 2.5% 4.9% 0.8% 3.6%
Ba 2.2%* 1.2% 1.5% 1.2% 8.0% 0.4% 0.6%
Cd 0.4%* 5.2% 4.6% 2.6% 1.9%* 3.8% 15.4%*
Co 0.3%* 2.5% 8.0%*
Cr 25.9%* 6.0% 3.0% 4.5% 2.7% 2.8% 4.6%*
Cu 3.7%* 2.7% 2.3% 7.4% 2.3%* 2.3% 5.8%
Fe 4.6%* 1.3% 1.8% 1.5% 4.9% 0.4% 2.0%
K 17.9%* 1.7% 1.9% 4.1% 7.1% 0.8% 8.3%
Mg 1.2%* 1.5% 1.8% 2.2% 3.1% 1.3% 10.6%
Mn 0.6%* 3.5% 0.5% 3.9% 0.7%
Na 1.3%* 3.9% 6.4% 6.5% 4.0% 10.8% 12.1%*
P 0.6%* 7.7% 8.7% 7.9% 2.5% 2.0%*
Pb 5.0%* 3.6% 3.4% 1.6% 0.4% 3.8% 0.2%
S 2.7%* 4.8% 6.2% 4.1% 4.2% 0.8% 6.7%
Si 2.5%* 2.2% 3.7% 4.1% 4.4% 0.8% 8.7%
Sr 10.6%* 0.9% 1.0% 0.8% 4.5% 0.5% 1.6%*
Zn 1.4%* 0.8% 1.8% 0.9% 0.2% 1.3% 1.5%
  1. The CV has been calculated only on values above the LOQ. Values with a * indicate that the CV has been computed on less than three measurements
\