Description
Water, ROTI®Star for IC, AAS and ICP is a high-purity laboratory water intended as a blank, diluent or matrix medium in ion chromatography and atomic spectroscopy. It has the empirical formula H₂O, molar mass 18,02 g/mol, CAS number 7732-18-5 and EG number 231-791-2. Physical properties include a density of 1 g/cm³ and a boiling point of 100 °C. Supplied in a 1 l glass pack, the product supports calibration, sample preparation and rinse steps in IC, AAS, ICP-OES and ICP-MS workflows where controlled water quality is essential. This ROTI®Star water from manufacturer Carl ROTH is positioned for spectroscopy and spectrometry laboratories that require dedicated water for acids, bases and aqueous standards. The defined molecular identity and physical data allow straightforward documentation in analytical methods and quality systems. Use is aimed at professional laboratories performing atomic spectroscopy and related instrumental analysis under appropriate clean-handling conditions.
This article is part of Photometers & spectrophotometers, in Spectroscopy & photometry.
Key features
- Specific conductivity (25 °C, at the time of preparation): ≤0.055 μS/cm
- TOC (Total Organic Carbon): ≤50 ppb
- Ammonium (NH4): ≤20 ppt
- Chloride (Cl): ≤100 ppt
- Fluoride (F): ≤50 ppt
- Nitrate (NO3): ≤20 ppt
- Phosphate (PO4): ≤20 ppt
- Sulphate (SO4): ≤200 ppt
- Ag (Silver): ≤50 ppt
- Al (Aluminium): ≤200 ppt
- CAS number: 7732-18-5
- Pack size: 1 l glass
- EG nr.: 231-791-2
- Empirical formula: H₂O
- Molar mass: 18,02 g/mol
- UNSPSC: 12191500
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Water, ROTI®Star for IC, AAS, ICP, 1 l glass
What is this article?
Water, ROTI®Star for IC, AAS, ICP, 1 l glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Photomètres & spectrophotomètres, inside Spectroscopie & photométrie, in Instruments de laboratoire.
A photometer reads absorbance at one or a few wavelengths. A spectrophotometer scans or selects many. Both send light through a cuvette or a well. The wavelength range, UV or visible, and the bandwidth decide what can be measured. A visible-only instrument cannot read a nucleic acid at 260 nm.
A photometer or spectrophotometer sends light through a sample and reads how much was absorbed. In the range where the Beer–Lambert relation holds, absorbance tracks concentration. A refractometer reads how a liquid bends light, which tracks dissolved solids. A polarimeter reads the rotation of polarised light, the classical measurement for sugars. The lamp, the wavelength and the cuvette path length are the three things that have to be right before the number means anything. The optical quantities trace to NIST and the BIPM.
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Shelves beside this one are Réfractomètres & polarimètres and Lampes, porte-cuves & accessoires.
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