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    Electrothermal Macro / Micro Kjeldahl Equipments

    from Bibby Scientific

    Electrothermal* Macro & Micro Kjeldahl Equipments from Bibby ScientificMQ3822B/E MQ3822B/EX1 MQ3822B/EX6 MQ3824B/E MQ3824B/EX1 MQ3824B/EX6 MQ3866B/E MQ3866B/EX1 MQ3866B/EX6 MQ3868B/E MQ3868B/EX1 MM2313/E MM2313/EX1 MM2313/EX6

    This product line is no longer available through us.

    For food analysis.

    • The Macro & Micro-Kjeldahl equipment consists of multi-mantles with 2 or 6 positions which heat to an ultra-high temperature.
    • Both can be used for the Kjeldahl analysis to determine protein content in food.
    Kjeldahl Method for Protein Content.
    • The method consists of heating a substance with sulphuric acid, which decomposes the organic substance by oxidation to liberate the reduced nitrogen as ammonium sulphate.
    • In this step potassium sulphate is added to increase the boiling point of the medium (from 169°C to 189°C).
    • Chemical decomposition of the sample is complete when the medium has become clear and colourless (initially very dark).
    • The solution is then distilled with sodium hydroxide (added in small quantities) which converts the ammonium salt to ammonia.
    • The amount of ammonia present (hence the amount of nitrogen present in the sample) is determined by back titration.
    • The end of the condenser is dipped into a solution of boric acid.
    • The ammonia reacts with the acid and the remainder of the acid is then titrated with a sodium carbonate solution with a methyl orange pH indicator.
    • Degradation: Sample + H2SO4 --> (NH4)2SO4 + CO2 + SO2 + H2O.
    • Liberation of ammonia: (NH4)2SO4 + 2NaOH --> Na2SO4 + 2H2O + 2NH3.
    • Capture of ammonia: B(OH)3 + H2O + NH3 --> NH4 + B(OH)4-.
    • Back-titration: B(OH)3 + H2O + Na2CO3 --> NaHCO3 + NaB(OH)4 + CO2 + H2O.
    • The Kjeldahl method’s universality, precision and reproducibility have made it the internationally-recognized method for estimating the protein content in foods and it is the accepted standard method.
    MQ Series Macro-Kjeldahl Equipment.
    • The Electrothermal MQ Series of Macro-Kjeldahl Equipment has been designed for Kjeldahl extraction on a macro scale.
    • These multibank units with either 2 or 6 recesses, have a stainless steel outer casing with back-mounted brackets (supplied with each unit), which can hold support rods of 12.7mm diameter max.
    • There are 2 volume sizes available for both the 2 and 6 recess models, one for 100-300ml vessels and the second for 500-800ml vessels.
    • Each heating mantle has its own energy regulator incorporating an On/Off switch and a “Mains to Heater” amber neon indicator.
    • There is also a “Mains On” clear neon indicator on the front panel.
    • The lower part of the unit houses dedicated controllers for each recess.
    • This “cool zone” housing is separated from the heating element by a stainless steel screen and a well-ventilated air space.
    • The heating element consists of thermally insulated element wire stitched into a cartridge, and operates in the temperature range of 550°C to 800°C max.
    • All MQ Macro-Kjeldahl Equipment models (except MQ3868B/E)incorporate an earth screen to protect the user from electric shocks and are double-fused for extra safety.
    • The rugged stainless steel outer casing is durable and easy to clean.

    Technical Specification.

    • Heating element temp 550ºC - 800ºC maximum.
    • Case material Stainless steel.
    • Thermal insulation Ceramic fibre/mineral wool.
    • Clamps for support rods Fitted with adjustable clamps to accept the standard arms supplied.
    • Wells capacity, ml 100-300.
    • Wells dimensions, mm 89 x 45 (diameter x depth).
    • Wells capacity, ml 500-800.
    • Wells dimensions, mm 117 x 59 (diameter x depth).

    Key Features.

    • Rugged, easy to clean stainless steel construction.
    • Back-mounted brackets hold flask support rods (supplied with each unit).
    • Choice of 2 or 6 positions.
    • Choice of 2 flask capacity sizes: 100 - 300ml and 500 - 800ml for both the 2 & 6 position models.
    • Dedicated controllers for each recess are housed in a “cool zone.
    • Grounded stainless steel earth screen covering the heating element.
    • Units are double fused for added safety (except for MQ3868B/E which is only available as the 230V model).
    MM Series Micro-Kjeldahl Equipment.
    • The Electrothermal Micro-Kjeldahl Equipment has been designed for Kjeldahl extraction on a micro scale.
    • These multibank units have 6 recesses in a stainless steel outer casing with back-mounted brackets (supplied with each unit), which can hold support rods of 12.7mm diameter max.
    • This 6 recess model accommodates flasks of between 18-50ml only.
    • Each heating position has its own energy regulator incorporating an On/Off switch and a “Mains to Heater” amber neon indicator.
    • There is also a “Mains On” clear neon indicator on the front panel.
    • The lower part of the unit houses dedicated controllers for each recess.
    • This “cool zone” housing is separated from the heating element by a stainless steel screen and a well-ventilated air space.
    • The heating element consists of thermally insulated element wire stitched into a cartridge, and operates in the temperature range of 550°C to 800°C max.
    • The MQ Micro-Kjeldahl Equipment models incorporate an earth screen to protect the user from electric shocks and are double-fused for extra safety.
    • The rugged stainless steel outer casing is durable and easy to clean.

    Technical Specification.

    • Heating element temp 550ºC - 800ºC maximum.
    • Case material Stainless steel.
    • Thermal insulation Ceramic fibre/mineral wool.
    • Clamps for support rods Fitted with adjustable clamps to accept the standard arms supplied.
    • Wells capacity, ml 18-50ml.

    Key Features.

    • Rugged, easy to clean stainless steel construction.
    • Back-mounted brackets hold flask support rods (supplied with each unit).
    • 6 positions which can accommodate flasks of between 18ml - 50ml capacity.
    • Dedicated controllers for each recess are housed in a “cool zone”.
    • Grounded stainless steel earth screen covering the heating element.
    • Units are double fused for added safety.

    PRODUCT TECHNICAL DATA SHEET

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    Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 wattElectrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 watt
    MM2313/E-EA
    Bibby Sci
    not available
    through us
    Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby Electrothermal MM2313/E Micro Kjeldahl EquipmentProduct description:Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby SciElectrothermalBibby Electrothermal MM2313/E Micro Kjeldahl Equipment logoMPN: MM2313/E SKU:MM2313/E Model:MM2313/E
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 wattElectrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 watt
    MQ3868B/EX6-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 wattBibby Electrothermal MQ3868B/EX6 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 wattBibby SciElectrothermalBibby Electrothermal MQ3868B/EX6 Macro Kjeldahl Equipment logoMPN: MQ3868B/EX6 SKU:MQ3868B/EX6 Model:MQ3868B/EX6
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 wattElectrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 watt
    MQ3822B/E-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby Electrothermal MQ3822B/E Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby SciElectrothermalBibby Electrothermal MQ3822B/E Macro Kjeldahl Equipment logoMPN: MQ3822B/E SKU:MQ3822B/E Model:MQ3822B/E
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]
    MQ3822B/EX1-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]Bibby Electrothermal MQ3822B/EX1 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]Bibby SciElectrothermalBibby Electrothermal MQ3822B/EX1 Macro Kjeldahl Equipment logoMPN: MQ3822B/EX1 SKU:MQ3822B/EX1 Model:MQ3822B/EX1
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 wattElectrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 watt
    MQ3824B/E-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 wattBibby Electrothermal MQ3824B/E Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 wattBibby SciElectrothermalBibby Electrothermal MQ3824B/E Macro Kjeldahl Equipment logoMPN: MQ3824B/E SKU:MQ3824B/E Model:MQ3824B/E
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 1100 watt [ CE ]Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 1100 watt [ CE ]
    MQ3824B/EX1-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 1100 watt [ CE ]Bibby Electrothermal MQ3824B/EX1 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 115 volts, 50/60 hertz, 1100 watt [ CE ]Bibby SciElectrothermalBibby Electrothermal MQ3824B/EX1 Macro Kjeldahl Equipment logoMPN: MQ3824B/EX1 SKU:MQ3824B/EX1 Model:MQ3824B/EX1
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 wattElectrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 watt
    MQ3866B/E-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 wattBibby Electrothermal MQ3866B/E Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 wattBibby SciElectrothermalBibby Electrothermal MQ3866B/E Macro Kjeldahl Equipment logoMPN: MQ3866B/E SKU:MQ3866B/E Model:MQ3866B/E
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 1800 watt [ CE ]Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 1800 watt [ CE ]
    MQ3866B/EX1-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 1800 watt [ CE ]Bibby Electrothermal MQ3866B/EX1 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 1800 watt [ CE ]Bibby SciElectrothermalBibby Electrothermal MQ3866B/EX1 Macro Kjeldahl Equipment logoMPN: MQ3866B/EX1 SKU:MQ3866B/EX1 Model:MQ3866B/EX1
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 wattElectrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 watt
    MQ3868B/E-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 wattBibby Electrothermal MQ3868B/E Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 3300 wattBibby SciElectrothermalBibby Electrothermal MQ3868B/E Macro Kjeldahl Equipment logoMPN: MQ3868B/E SKU:MQ3868B/E Model:MQ3868B/E
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 3300 wattElectrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 3300 watt
    MQ3868B/EX1-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 3300 wattBibby Electrothermal MQ3868B/EX1 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 500-800 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 3300 wattBibby SciElectrothermalBibby Electrothermal MQ3868B/EX1 Macro Kjeldahl Equipment logoMPN: MQ3868B/EX1 SKU:MQ3868B/EX1 Model:MQ3868B/EX1
    Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 wattElectrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 watt
    MM2313/EX6-EA
    Bibby Sci
    not available
    through us
    Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby Electrothermal MM2313/EX6 Micro Kjeldahl EquipmentProduct description:Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby SciElectrothermalBibby Electrothermal MM2313/EX6 Micro Kjeldahl Equipment logoMPN: MM2313/EX6 SKU:MM2313/EX6 Model:MM2313/EX6
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 wattElectrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 watt
    MQ3822B/EX6-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby Electrothermal MQ3822B/EX6 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 100-300 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 600 wattBibby SciElectrothermalBibby Electrothermal MQ3822B/EX6 Macro Kjeldahl Equipment logoMPN: MQ3822B/EX6 SKU:MQ3822B/EX6 Model:MQ3822B/EX6
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 wattElectrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 watt
    MQ3824B/EX6-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 wattBibby Electrothermal MQ3824B/EX6 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 500-800 millilitre, 2, 550-800°C, 230 volts, 50/60 hertz, 1100 wattBibby SciElectrothermalBibby Electrothermal MQ3824B/EX6 Macro Kjeldahl Equipment logoMPN: MQ3824B/EX6 SKU:MQ3824B/EX6 Model:MQ3824B/EX6
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 wattElectrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 watt
    MQ3866B/EX6-EA
    Bibby Sci
    not available
    through us
    Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 wattBibby Electrothermal MQ3866B/EX6 Macro Kjeldahl EquipmentProduct description:Electrothermal macro kjeldahl equipment, 100-300 millilitre, 6, 550-800°C, 230 volts, 50/60 hertz, 1800 wattBibby SciElectrothermalBibby Electrothermal MQ3866B/EX6 Macro Kjeldahl Equipment logoMPN: MQ3866B/EX6 SKU:MQ3866B/EX6 Model:MQ3866B/EX6
    Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]
    MM2313/EX1-EA
    Bibby Sci
    not available
    through us
    Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]Bibby Electrothermal MM2313/EX1 Micro Kjeldahl EquipmentProduct description:Electrothermal micro kjeldahl equipment, 18-50 millilitre, 6, 550-800°C, 115 volts, 50/60 hertz, 600 watt [ CE ]Bibby SciElectrothermalBibby Electrothermal MM2313/EX1 Micro Kjeldahl Equipment logoMPN: MM2313/EX1 SKU:MM2313/EX1 Model:MM2313/EX1