BS ISO 18664:2015 pdf download – Traditional Chinese Medicine — Determination of heavy metals in herbal medicines used in Traditional Chinese Medicine.
3? Terms? and? definitions For the purposes of this document, the following terms and definitions apply. 3.1 arsenic content quantity of arsenic determined in accordance with the conditions specified in this method and expressed as arsenic (As), in micrograms per kilogram of the product as received [SOURCE: ISO 11212-1:1997, 2.1] 3.2 mercury content quantity of mercury determined in accordance with the conditions specified in this method and expressed as mercury (Hg), in micrograms per kilogram of the product as received [SOURCE: ISO 11212-2:1997, 2.1] 3.3 lead content quantity of lead determined in accordance with the conditions specified in this method and expressed as lead (Pb), in micrograms per kilogram of the product as received [SOURCE: ISO 11212-3:1997, 2.1] 3.4 cadmium content quantity of cadmium determined in accordance with the conditions specified in this method and expressed as cadmium (Cd), in micrograms per kilogram of the product as received [SOURCE: ISO 11212-4:1997, 2.1] 4 Analytical methods 4.1 Instrumental methods 4.1.1 Atomic Absorption Spectrometry (AAS) AAS methods can be used for the individual determination of lead, mercury, arsenic and cadmium in natural materials used in TCM. The detailed information is specified in the following documents. ISO 6561-2:2005, Fruits, vegetables and derived products — Determination of cadmium content — Part 2: Method using flame atomic absorption spectrometry ISO 11212-1:1997, Starch and derived products — Heavy metals content — Part 1: Determination of arsenic content by atomic absorption spectrometry ISO 11212-2:1997, Starch and derived products — Heavy metals content — Part 2: Determination of mercury content by atomic absorption spectrometry ISO 11212-3:1997, Starch and derived products — Heavy metals content — Part 3: Determination of lead content by atomic absorption spectrometry with electrothermal atomization
4.1.2 Inductively-Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) ICP-AES methods can be used for the simultaneous determination of lead, mercury, arsenic and cadmium in natural materials used in TCM. The detailed information is specified in the following documents. ISO 11885:2007, Water quality — Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) ISO/TS 21033:2011, Animal and vegetable fats and oils — Determination of trace elements by inductively coupled plasma optical emission spectroscopy (ICP-OES) — First Edition ISO 27085:2009, Animal feeding stuffs-Determination of calcium, sodium, phosphorus, magnesium, potassium, iron, zinc, copper, manganese, cobalt, molybdenum, arsenic, lead and cadmium by ICP-AES — First Edition 4.1.3 Inductively-Coupled Plasma Mass Spectrometry (ICP-MS) ICP-MS methods can be used for the simultaneous determination of lead, mercury, arsenic and cadmium in natural materials used in TCM. The detailed information is specified in the following documents. ISO 17294-1:2004, Water quality — Application of inductively coupled plasma mass spectrometry (ICP- MS) — Part 1: General guidelines ISO 17294-2:2003, Water quality — Application of inductively coupled plasma mass spectrometry (ICP- MS) — Part 2: Determination of 62 elements