Lanthanides determination in red wine using ultrasound assisted extraction, flow injection, aerosol desolvation and ICP-MS

Normalized Rare Earth Elements in Water, Sediments, and Wine: Identifying Sources and Environmental Redox Conditions

“…This method was expanded to include the examination of a wide range of sedimentary components following the development of high-resolution Ge(Li) -ray detectors, e.g., soils, marine and nonmarine sediments, volcanic deposits, biogenic detritus, aerosols, the dissolved and suspended fractions of steams and seawater, moon rocks, and chondrites. Instrumental neutron activation analysis remained widely used for some 20 years until it was largely supplanted by other techniques, coupled with various leaching and extraction procedures that have allowed for the analysis of the complete group of REE in a wide range of sample types [1,5,8,9,16,25]. These techniques also greatly improved the analytical accuracy and precision, now better than ca 5%.…”

“…Bentlin et al [25] an America, each of which has a unique REE curve ( Figure 12). Each curve possibly represents the curve of the soil on which the grapes were grown and the source rock of th ing that contributed to soil formation fractionated insignificantly Ce from the 3+ valence REE, i.e., between rock, ground water and soil.…”

Classification of Argentinean Sauvignon Blanc Wines by UV Spectroscopy and Chemometric Methods

“…Wine is a product widely consumed of economic importance in many countries around the world (Bentlin and others ). Argentina is the 9th wine exporting country and the 5th wine producer after Italy, France, Spain, and the United States, according to the annual statistical report on world vitiviniculture made by the Intl.…”

Atomic spectrometry update. Clinical and biological materials, foods and beverages

“…Validation using NIST SRM 1577b gave results in good agreement with certied values and, with other analytes, demonstrated the applicability to clinical micro-volume samples. Bentlin et al 45 also described the use of FI for the analysis of lanthanide elements in red wine aer ultrasonic digestion for origin discriminatory purposes. Micro-volumes of sample (50 mL) were used in combination with a PFA micro-nebuliser and aerosol desolvation.…”

“…The determination of the lanthanide series elements in wine is oen undertaken out for authenticity purposes, although it is problematic. Bentlin et al 45 indicated that the use of an ultrasonic probe for 90 s with a 10-fold dilution gave best results in sample preparation for determination by ICP-MS. Lanthanide concentration data allowed discrimination of red wines from three countries from South America. An impressive set of analytical data from nearly 1400 Australian wine samples and 56 elements determined by ICP-MS and ICP-AES was published by Martin et al 158 Wine growing regions from within the same state were easily discriminated with LDA with the exception of South Australia where several geographical indications are situated in close proximity.…”