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2 protocols using smcl3 6h2o

1

Solvent Extraction of Lanthanides

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Tricaprylammonium chloride (Aliquat® 336, [A336][Cl], 88.2–90.6%), dicyclohexano-18-crown-6 (DCH18C6, ≥98%), LiCl (99%) and HNO3 (≥65%) were purchased from Sigma-Aldrich (Diegem, Belgium). SmCl3·6H2O (99.9%) and Eu(NO3)3·6H2O (99.9%) were purchased from Strem Chemicals, Inc. (Newburyport, USA). Sm(NO3)3·6H2O (99.9%) and LiNO3 (anhydrous, 99%) were purchased from Alfa Aesar (Karlsruhe, Germany). EuCl3·6H2O (99.9%), Sr(NO3)2 (99.9%) and granular zinc (30 mesh, ≥99.7%) were purchased from Acros Organics (Geel, Belgium). SrCl2·6H2O (≥99%), NH4Cl (≥99.8%), Na2SO4 (≥99%) and acetonitrile (≥99.5%) were purchased from Chem-Lab (Zedelgem, Belgium), as well as the Sm, Eu, Zn and Cu standard solutions (≥99.99%, 1000 μg mL−1, 2–5% HNO3, Plasma HIQU). NH4NO3 (≥99%) was purchased from Merck Millipore (Darmstadt, Germany). All products were used as received, without any further purification steps. Aqueous samples were prepared with Milli-Q water (18.2 MΩ cm at 25 °C).
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2

Trace Element Analysis Protocol

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CoCl2·6H2O (analytical grade), Co(NO3)2·6H2O (99%), ethylene glycol (99.9%), p-cymene
(99%), nitric acid (70%), tetraethylammonium chloride (98%), tetraethylammonium
nitrate (99%), and tetraethylammonium hydrogen sulfate (99%) were
purchased from Acros Organics (Geel, Belgium). Co, Sm, and Ga standard
solutions (1000 ± 10 mg L–1) were purchased
from Chem-Lab (Zedelgem, Belgium). Acetonitrile-d3 (99.9%), Triton X-100 (for molecular biology), and 1-ethyl-3-methylimidazolium
chloride (>95%) were obtained from Sigma-Aldrich (Diegem, Belgium).
Cyanex 923 was purchased from Solvay (Vlaardingen, Netherlands). Isopropanol
(analytical reagent) and LiCl (analytical reagent grade) were supplied
by Fisher Scientific (Merelbeke, Belgium). SmCl3·6H2O (99.9%) was ordered from Strem Chemicals (Newburyport, MA).
A silicone solution in Isopropanol for the treatment of the TXRF quartz
glass carriers was obtained from SERVA Electrophoresis GmbH (Heidelberg,
Germany). Choline chloride (98%) was purchased from J&K Scientific
(Pforzheim, Germany). 1-Butyl-1-methylpyrrolidinium chloride (99%)
was obtained from IoLiTec (Heilbronn, Germany). Tetraethylammonium
bromide (99%) was ordered from J. T. Baker Chemicals (Deventer, Netherlands).
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