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Table 3 Composition of the 17-elements standard and reference solutions used in this study

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

Element Standard (μg/L) Reference (μg/L)
Al 1000 500
Ba 200 100
Cd 200 100
Co 200 100
Cr 1000 500
Cu 200 100
Fe 200 100
K 2000 1000
Mg 200 100
Mn 200 100
Na 1000 500
P 1001 500.5
Pb 2000 1000
S 1000 500
Si 1001 500.5
Sr 200 100
Zn 200 100
  1. The blank is 2% (w/w) HNO3 in UPW
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