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Disolventes de Super Pureza ROMIL-SpS™

El Grado Analítico para el tercer milenio

La química analítica moderna hace un uso extensivo de instrumentación sofisticada. Para el análisis a nivel de partes por billón, ésta suele ser la única opción. Sin embargo, para que dicha instrumentación funcione de forma coherente y fiable, el analista debe elegir su sistema de disolvente con sumo cuidado.

A menudo, el disolvente es el factor clave para obtener una medición analítica válida. Los efectos de los disolventes, como la polaridad y el momento dipolar, pueden afectar a la forma en que el analito puede ser disuelto en primer lugar. Propiedades como el punto de ebullición y el punto de fusión pueden determinar la facilidad con la que se puede manejar la solución de analito. Y la pureza del disolvente puede ser un factor crítico en la detección y medición del analito, ya que las impurezas del disolvente pueden enmascarar el pico del analito, como en la cromatografía, o suprimir su presencia por falta de transparencia, como en la espectrometría ultravioleta o infrarroja.

ROMIL-SpS™ Los solventes de súper pureza han abordado este problema durante mucho tiempo. Tomando la producción de disolventes de las principales fuentes mundiales y purificándola mediante tratamiento químico y destilación en vidrio, eliminamos esta calidad incoherente y mejoramos enormemente la pureza (o, para verlo de otro modo, reducimos enormemente las impurezas). Esto significa que el usuario del laboratorio puede aprovechar no sólo la calidad constante de ROMIL-SpS™, sino también su idoneidad para una amplia gama de aplicaciones. Y como un grado sólo necesita ser almacenado para una variedad de métodos, los productos de ROMIL-SpS™ también tienen la ventaja de ayudar a los laboratorios, no sólo en el cumplimiento de la legislación sobre salud, seguridad y medio ambiente, sino también en la acreditación de sus sistemas de calidad según normas internacionales como ISO 9000 e ISO 17025. Realmente deben considerarse el grado analítico de facto para los laboratorios del tercer milenio.

Specifications
Applications
ROMIL-SpS™
Acetic Acid SpS Di-iso-propyl Ether SpS stabilised with BHT n-Nonane 95% SpS
Acetic Anhydride SpS 1,2-Epoxypropane SpS n-Octane 95% SpS
Acetone SpS 1,2-Ethanediol SpS n-Pentane 95% SpS
Acetone SpS low in methanol Ethanol absolute SpS Petroleum Ether 30-40°C SpS
Acetonitrile 230 SpS Ethanolamine SpS Petroleum Ether 40-60°C SpS
Acetonitrile 200 SpS far UV Ethyl Acetate SpS Petroleum Ether 60-80°C SpS
Acetonitrile 190 SpS far UV/gradient quality Heptane fraction SpS Petroleum Ether 80-100°C SpS
Carbon Disulphide SpS n-Heptane 95% SpS Petroleum Ether 100-120°C SpS
Carbon Disulphide SpS low in benzene n-Heptane 99% SpS Petroleum Ether 140-165°C SpS
Chlorobenzene SpS Hexafluoropropan-2-ol SpS Propan-1,2-diol SpS
1-Chlorobutane SpS Hexane fraction SpS Propan-1-ol SpS
Chloroform SpS stabilised with amylene iso-Hexane 95% SpS Propan-2-ol SpS
Chloroform SpS stabilised with ethanol n-Hexane 95% SpS Propylene Carbonate SpS
Cyclohexane SpS n-Hexane 99% SpS Pyridine SpS
Cyclohexanone SpS Methanol 225 SpS Tetrachloroethylene SpS
1,2-Dichlorobenzene SpS Methanol 215 SpS Tetrahydrofuran SpS
1,2-Dichloroethane SpS Methanol 205 SpS gradient quality Tetrahydrofuran SpS stabilised with BHT
Dichloromethane SpS stabilised with amylene   Methyl tert-Butyl Ether SpS Toluene SpS
Diethyl Ether SpS stabilised with BHT Methyl iso-Butyl Ketone SpS Trichloroethylene SpS stabilised with maxistab
Diethyl Ether SpS stabilised with copper Methylcyclohexane SpS 2,2,2-Trifluoroethanol SpS
Diethyl Ether SpS stabilised with ethanol Methyl Ethyl Ketone SpS 2,2,4-Trimethylpentane SpS
1,2-Dimethoxyethane SpS 2-Methylpropan-1-ol SpS Water SpS
Dimethylacetamide SpS 2-Methylpropan-2-ol SpS m-Xylene SpS
Dimethylformamide SpS N-Methyl-2-pyrrolidone SpS o-Xylene SpS
Dimethyl Sulphoxide SpS 2-Methyltetrahydrofuran SpS p-Xylene SpS
1,4-Dioxan SpS 2-Methyltetrahydrofuran SpS stabilised with BHT   Xylene mixed isomers SpS
  • High Performance Liquid Chromatography

    High chemical purity together with low water, acidity and residue levels lead to better separations and longer column life with ROMIL‑SpS solvents. Excellent optical purity at low wavelengths leads to improved detector sensitivity in the far ultra-violet region.
  • Gas Chromatography and Pesticide Residue Analysis

    Low non-volatile residue levels due to glass distillation make ROMIL‑SpS solvents suitable for simple analysis of pesticide and other extraction residues. The solvent may be concentrated by evaporation and will be free from interfering chromatographic signals with flame ionisation and electron capture detectors.

    Test for Pesticide Residue Analysis:
    The solvent is evaporated to dryness and the residue dissolved in high purity 2,2,4-trimethylpentane. A gas chromatogram is then run with ECD detection to determine no interfering peaks greater in area than that obtained by 5 ng/LT lindane (in the neat solvent) within the range of retention times from lindane (shortest) to 4,4'-DDT (longest).

  • Ultra-Violet Spectrometry

    Excellent optical purity with a smooth spectral curve renders ROMIL‑SpS solvents suitable for all UV applications. For work at short wavelengths we recommend that the solvent is nitrogen purged before use and that partially used solvents are stored under an inert atmosphere.

    Test for Ultra-Violet Spectrometry:
    The solvent is first purged with dry nitrogen for 5-10 minutes. UV Transmission values are then measured in a 10mm quartz cell using ROMIL Code H950 Water SpS as reference.

  • Infra-Red Spectrometry

    Clear infra-red windows in many ROMIL‑SpS solvents give a wide choice of suitable solvents.

    Test for Infra-Red Spectrometry:
    An infra-red spectrum is matched against that of a reference standard to check for identity and to verify the absence of uncharacteristic absortion bands.

  • Molecular Biology

    Although many ROMIL‑SpS solvents are suitable for use in molecular biology we have found that the purity constraints can be different for this area of science. To answer the specific needs of biochemists and molecular biologists we have available a number of solvents available as ROMIL‑BiO grade detailed in a separate section.
  • Non-aqueous Titrations

    Both volumetric and coulometric techniques are catered for by the very low water levels in ROMIL‑SpS solvents. Also suitable for electrochemical detection in HPLC. See also our range of ROMIL Hi‑Dry® anhydrous solvents and ROMIL Hi‑Dry® KF Karl Fischer reagents which take the concept of dryness and its determination one stage further.
  • Trace Element Anlysis

    Metallic impurities in ROMIL‑SpS solvents are typically in the parts per billion range making them suitable for a wide variety of trace metal applications including the increasingly important area of environmental monitoring. Note that the concentrations of some elements, particularly Ca, Si, K, Na, B, Al, Mg, Mn, will increase over time due to storage in glass bottles.
  • Organic Synthesis

    Many organic and organometallic synthetic methods specify a dry solvent as the reaction medium. The exceptional dryness exhibited by ROMIL‑SpS solvents allows synthetic chemists to avoid the hazardous and time-consuming drying of solvents in the laboratory prior to use.

    See also the ROMIL Hi‑Dry® anhydrous solvents which feature even lower water levels.
  • Liquid Scintillation Counting

    Cocktails may be made with confidence since the relevant ROMIL‑SpS solvents feature low quenching impurities and exhibit low background counts due to manufacture from petrochemical feedstocks.
Choose your product
showing 20 of 192 products
Solvent
1,2-Dichlorobenzene (3)
1,2-Dichloroethane (3)
1,2-Epoxypropane (3)
1,2-Ethanediol (3)
1,4-Dioxan (3)
1-Chlorobutane (3)
2,2,2-Trifluoroethanol (2)
2,2,4-Trimethylpentane (3)
2-Methylpropan-1-ol (3)
2-Methylpropan-2-ol (3)
Acetic Acid (3)
Acetic Anhydride (1)
Acetone (3)
Acetonitrile 190 (3)
Acetonitrile 200 (3)
Acetonitrile 230 (3)
Butan-1-ol (3)
Carbon Disulphide (1)
Chloroform (6)
Cyclohexane (3)
Cyclohexanone (3)
Dichloromethane (3)
Diethyl Ether (6)
Di-iso-propyl Ether (3)
Dimethyl Sulphoxide (3)
Dimethylacetamide (3)
Dimethylformamide (3)
Ethanol absolute (3)
Ethanolamine (2)
Ethyl Acetate (3)
Hexane fraction (3)
iso-Hexane 95% (3)
Methanol 205 (3)
Methanol 215 (3)
Methyl Ethyl Ketone (3)
Methyl iso-Butyl Ketone (3)
Methyl tert-Butyl Ether (3)
Methylcyclohexane (2)
n-Butyl Acetate (3)
n-Heptane 95% (3)
n-Heptane 99% (3)
n-Hexane 95% (3)
n-Hexane 99% (2)
N-Methyl-2-pyrrolidone (3)
n-Nonane 95% (3)
n-Octane 95% (3)
n-Pentane 95% (3)
o-Xylene (1)
Petroleum Ether 100-120°C (3)
Petroleum Ether 140-165°C (3)
Petroleum Ether 30-40°C (3)
Petroleum Ether 40-60°C (3)
Petroleum Ether 60-80°C (3)
Petroleum Ether 80-100°C (3)
Propan-1,2-diol (3)
Propan-1-ol (3)
Propan-2-ol (3)
Propylene Carbonate (2)
Pyridine (3)
Tetrachloroethylene (3)
Tetrahydrofuran (6)
Toluene (3)
Trichloroethylene (3)
Water (3)
Xylene mixed isomers (2)
Size
100ml (2)
1LT (64)
2½LT (60)
500ml (66)
Applications
Romil Solvents for Pesticide Residues (63)
Reference RM-H014L
Description ACIDO ACETICO SpS 2,5 L
Price 114,23€
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Reference RM-H014M
Description ACIDO ACETICO SpS 1 L
Price 56,91€
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Reference RM-H014P
Description ACIDO ACETICO SpS 500 ml
Price 45,81€
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Reference RM-H027M
Description Acetic Anhydride SpS 1LT
Price 62,08€
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Reference RM-H031L
Description ACETONA SpS 2,5 L
Price 39,06€
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Reference RM-H031M
Description ACETONA SpS 1 L
Price 19,84€
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Reference RM-H031P
Description ACETONA SpS 500 ml
Price 16,46€
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Reference RM-H047L
Description ACETONITRILO 230 SpS 2,5 L
Price 51,76€
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Reference RM-H047M
Description ACETONITRILO 230 SpS 1 L
Price 31,14€
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Reference RM-H047P
Description ACETONITRILO 230 SpS 500 ml
Price 25,19€
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Reference RM-H048L
Description ACETONITRILO 200 SpS UV LEJANO 2,5 L
Price 45,70€
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Reference RM-H048M
Description ACETONITRILO 200 SpS UV LEJANO 1 L
Price 36,09€
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Reference RM-H048P
Description ACETONITRILO 200 SpS UV LEJANO 500 ml
Price 28,75€
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Reference RM-H049L
Description ACETONITRILO 190 SPS UV  LEJANO/GRADIENTE 2,5 L
Price 70,29€
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Reference RM-H049M
Description ACETONITRILO 190 SpS UV LEJANO  / GRADIENTE 1 L
Price 39,86€
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Reference RM-H049P
Description ACETONITRILO 190 SpS UV LEJANO  / GRADIENTE 500ml
Price 31,34€
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Reference RM-H083L
Description BUTAN-1-OL SpS 2,5 L
Price 118,79€
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Reference RM-H083M
Description BUTAN-1-OL SpS 1 L
Price 60,09€
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Reference RM-H083P
Description BUTAN-1-OL SpS 500 ml
Price 47,99€
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Reference RM-H087L
Description ACETATO DE n-BUTILO SpS 2,5 L
Price 89,04€
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showing 20 of 192 products