TABLE X

Comparison of Three-Acid Digestion vs Extraction of Two Different Laminated Bottles

ElementPolyester Bottle
Polycarbonate Bottle
Acid Digestion (μg/g)Extraction with Buffer1 (μg/g)Acid Digestion (μg/g)Extraction with Buffer1 (μg/g)
Ca2114125
Fe2<1<1<1
Sb1517ND2ND2
SnND2ND2ND2ND2
Ti16<1<1<1
Zn104132

  • ↵1 2% Citric Acid.

  • ↵2 ND: None detected; below the limit of detection (LOD).