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Electrophoresis Applications

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    Determination of total sulfur dioxide in wine and beer

    Method allows determination of mass concentration of total sulfur dioxide (sulfurous acid and its salts, food additives E220–E228) in wine, wine materials, beer and beer products by capillary electrophoresis (CE) using capillary electrophoresis system “CAPEL® -105M”. The mass concentration of total sulfur dioxide is regulated by normative documents to be held within 100– 400 mg/L for different types of wine and wine materials and within 20–50 mg/L for beer products. According to European and Russian regulations it is allowed not to indicate on the labels the presence of sulfur dioxide in beverages if its concentration is less than 10 mg/L. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of hesperidin and naringin in juices using CAPEL-105M capillary electrophoresis system

    The method is intended for determination of hesperidin and naringin using capillary electrophoresis technique in order to reveal adulteration of juices. These components are tested in citrus juices, concentrated juices, nectars, juice-containing beverages, and fruit sauces that are produced primarily from oranges, grapefruits, tangerines, lemons, and limes. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of organic acids in beverages

    The method allows determination of organic acids, in soft drinks (juices, fizz drinks) and alcoholic drinks (wines, beer). 

    The capillary electrophoresis method for evaluation of cations concentration is based on differential migration and separation of cations in electric field due to the difference in their electrophoretic mobility. Identification and quantitative determination of the analyzed cations is performed by indirect detection measuring UV absorption at 254 nm (for “CAPEL® -103RT/104T” systems) or 267 nm (for “CAPEL® -105/105M” systems) wavelength.

    The determination is not hindered by the presence of anions of ammonia, lithium, strontuim, barium, manganese, ferrum (II) in the quantities that are typical for the analyzed drinks. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of bromide and iodide anions in water samples

    The method allows determination of bromide and iodide ions in natural, potable (incl. bottled), and mineral water using capillary electrophoresis (CE) method.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of inorganic cations in drinks

    The method enables fast determination of inorganic cations (sodium, potassium, calcium, and magnesium) in the samples of juices, beer, wines, brandies, brandy alcohols, and raw materials by capillary electrophoresis. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of D- and L-isomers of tartaric and malic acids in wines, wine materials, and food additive

    Naturally occurred is predominantly L-form of tartaric acid whereas its D-form and the relevant racemic mixture can be artificially synthesized. Generally, artificial acidification of wine with tartaric acid is allowed by OIV, but only pure L-form must be used for this purpose. Thus the analysis of tartaric acid isomers either in food additives or directly in wine can be an important parameter in clarifying any deviations in wine production. Analysis of isomers of malic acid is also within the necessary oenological procedures stated in OIV recommendations. LUMEX INSTRUMENTS offers the present method which allows determination of L- and D-forms of tartaric and malic acids in wine, wine materials, and special food additives by capillary electrophoresis method. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of cations in beverages

    The method enables fast determination of inorganic cations (sodium, potassium, calcium, and magnesium) in the samples of juices, beer, wines, brandies, brandy alcohols, and raw materials by capillary electrophoresis. 

    The method for evaluation of cations concentration is based on differential migration and separation of cations in electric field due to the difference in their electrophoretic mobility. Identification and quantitative determination of the analyzed cations is performed by indirect detection measuring UV absorption at 254 nm (for “CAPEL® -103RT/104T” systems) or 267 nm (for “CAPEL® -105/105M” systems) wavelength. 

    The determination is not hindered by the presence of anions of ammonia, lithium, strontuim, barium, manganese, ferrum (II) in the quantities that are typical for the analyzed drinks. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Identification and determination of synthetic dyes in soft and alcoholic drinks

    The method allows identification and determination of synthetic dyes in samples of soft and alcoholic drinks by capillary electrophoresis. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of phenoxycarboxylic acid herbicides in water using high performance capillary electrophoresys method using Capel systems

    The method allows determination of herbicides classified as phenoxycarboxylic acids, specifically: 2,4-dichloro-- phenoxybutyric acid (2,4-DB), 2,4-dichlorophenoxypropionic acid (2,4-DP, Dichlorprop), 2,4-dichloropheno-- xyacetic acid (2,4-D), and phenoxyacetic acid in samples of natural, potable and treated waste water by capillary electrophoresis. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of amino acids in beer and wort by capillary electrophoresis

    Free forms of amino acids in beer originate mostly from malt. The following method enables fast quantitative determination in beer and wort of the following free amino acids: arginine, lysine, tyrosine, phenylalanine, histidine, leucine and iso-leucine (total), methionine, valine, proline, alanine, glycine, cystine, tryptophan, aspartic and glutamic acids. Total content of amino acids is fdetermined after hydrolysis of proteins. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of dyes in beverages

    The method allows identification and determination of synthetic dyes in samples of soft and alcoholic drinks by capillary electrophoresis.

    The Capillary Electrophoresis (CE) method for the determination of synthetic dyes is based on their differential migration in a narrow quartz capillary under the influence of the applied electric field. Identification and quantitative determination of dyes is performed by measuring the UV absorbance at 254 nm (for “CAPEL® -103РТ/104Т” systems) or 215 nm (for “CAPEL® -105/105М” systems) wavelength. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

  • High brightness LED (HBLED) for energy/environment sector

    We are playing an important role in the manufacture of HBLEDs, enabling huge changes in the global lighting industry. Our systems are used by a number of leading HBLED manufacturers providing market leading device performance and driving down cost of ownership. They are also used in the manufacture of other light emitting technologies e.g. OLEDs providing process solutions from R&D to full scale production.

    By Oxford Instruments plc based in Abingdon, UNITED KINGDOM.

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