Colour Interval Value Publication Food Name Reference
[ 0.09, 0.11 ) 0.09 mg/100 ml Coffee C Lang R., et al (2006) Development of a stable isotope dilution.... Journal of Agricultural and Food Chemistry 54:5755-5762 PubMed (16881674)
[ 0.11, 0.14 ) 0.13 mg/100 ml Coffee B Lang R., et al (2006) Development of a stable isotope dilution.... Journal of Agricultural and Food Chemistry 54:5755-5762 PubMed (16881674)
[ 0.14, 0.17 ) 0.16 mg/100 ml Coffee A Lang R., et al (2006) Development of a stable isotope dilution.... Journal of Agricultural and Food Chemistry 54:5755-5762 PubMed (16881674)