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Certipur®, Supelco® Thorium Standard Solution, 10 mg/L Th in dil. Nitric Acid (from Th(NO₃)₄), Standard for ICP

Supplier: Merck

Thorium Standard, 10 mg/L, Certipur®, Supelco®, Thorium, Matrix: Nitric acid dil., Application: ICP standards

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Thorium ICP Standard, (CRMs), Fluka™

Supplier: Honeywell Chemicals

Certified Reference Material (CRM)

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Thorium Standard Solution, 1,000 μg/ml, 2% HNO₃

Supplier: PerkinElmer

Until 10th October 2017 it is still allowed to use mercury thermometers if they are exclusively intended to be used for tests as per standards which require the usage of mercury thermometers.

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Thorium standard solution, for ICP, in 5% HNO₃, CRM, VHG

Supplier: LGC Standards PROMOCHEM

These solutions are intended for use as a certified reference material or calibration standard for inductively coupled plasma optical emission spectroscopy (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), flame or furnace atomic absorption spectroscopy (AA or GFAA), x-ray fluorescence spectroscopy (XRF), and other techniques for elemental analysis.