简介:Rice samples cultivated in the USA, Europe and Basmati regions have been
analysed using Isotope Ratio Mass Spectrometry (IRMS) and Inductively
Coupled Plasma Mass Spectrometry (ICP-MS). Nine key variables (δ13C,
δ18O,简介:Rice samples cultivated in the USA, Europe and Basmati regions have been
analysed using Isotope Ratio Mass Spectrometry (IRMS) and Inductively
Coupled Plasma Mass Spectrometry (ICP-MS). Nine key variables (δ13C,
δ18O, boron, holmium, gadolinium, magnesium, rubidium, selenium and
tungsten) were identified by canonical discriminant analysis as providing
the maximum discrimination between rice samples from these regions.
High levels of boron (>2500 ppb) were associated with rice samples from
America and notably high levels of holmium were found in rice samples
from the state of Arkansas. European rice samples generally contained
relatively high levels of magnesium and Indian/Pakistani samples were
characterised by relatively low oxygen-18 ( 18O) abundance.详细>