A-carotene in 100% acetone, 2.5 ml, ca. 1 mg/L (PPS-ACAR) Antheraxanthin in 100% ethanol, 2.5 ml , ca. 1 mg/L (PPS-ANTH) b-carotene in 100% acetone, 2.5 ml, ca. 1 mg/L (PPS-BCAR) Chlorophyll a in 90% acetone, 2.5 ml, ca. 1 mg/L (PPS-CHLA) Chlorophyll b in 90% acetone, 2.5 ml, ca. 1 mg/L (PPS-CHLB) Lutein in 100% ethanol, 2.5 ml, ca. 1 mg/L (PPS-LUTE) Neoxanthin in 100% ethanol, 2.5 ml, ca. 1 mg/L (PPS-NEOX) Violaxanthin in 100% ethanol, 2.5 ml, ca. 1 mg/L (PPS-VIOL) Zeaxanthin in 100% et