Summary of commonly used instruments and equipment in food testing laboratories of third-party testing institutions

equipment

Functional use

Balance (0.1mg)

Sample and reagent weighing

grinder

Smashing of solid samples

Tissue homogenizer

Vegetables, fruits, etc. are prepared into a homogenate.

Pure water machine / ultra pure water machine

Laboratory water.

Fume hood

Prevent the escape of toxic, harmful, volatile substances, aerosols, etc.

Drying box

Water salt test, glass and other equipment drying

Water bath

Constant temperature water bath

Heating plate

Laboratory heating, charring, acid picking, etc.

Centrifuge

Separation of the target substance in the sample.

Magnetic stirrer

Stir and mix the sample.

Vortex mixer

The sample is shaken and mixed.

Nitrogen blower

The sample was concentrated and dried.

Rotary evaporator

The sample was concentrated under reduced pressure.

pH meter

Solution pH detection.

Microwave digestion instrument

Pretreatment of samples in the detection of heavy metals such as lead, mercury and arsenic

Moisture analyzer

Rapid determination of moisture in food

Kjeldahl

Detection of protein content in food.

Fat analyzer

Determination of fat content in foods.

Fatty acid analyzer

For fatty acid content analysis.

Amino acid analyzer

Analysis of amino acid content in food.

Brix meter

Quickly measure the concentration or refractive index of solutions such as beverages, alcohol, food, and sugar.

Viscometer

Determination of viscosity in foods such as sauces and creams.

UV-visible spectrophotometer

Used for qualitative and quantitative analysis of materials.

Atomic absorption spectrometer

Nutrients such as calcium, zinc and iron in food, as well as harmful elements such as lead, chromium, cadmium, copper and nickel.

Atomic fluorescence spectrometer

For the detection of harmful elements such as mercury and arsenic in foods

Gas Chromatograph

Detection of pesticide residues in food, trans fatty acids, volatile organic compounds in animal and vegetable oils, etc.

Liquid chromatography

Including liquid chromatography-tandem mass spectrometry for the detection of veterinary drug residues in foods.

Ion chromatograph

It is used for the detection of nitrates, nitrites, and bromate in wheat flour.

Inductively coupled plasma mass spectrometer

For the detection of harmful elements such as metals in foods

Ultra-clean workbench

Used in microbiology laboratories to provide a sterile operating environment for microbial inoculation and the like.

Incubator

Biochemical incubator, electrothermal constant temperature incubator, mold incubator for microbial culture such as bacteria and mold.

Autoclave

It is used for sterilization of microbial laboratory media, physiological saline, laboratory waste, clothing, etc.

Infrared sterilizer

Sterilization of microbial laboratory inoculation needles, inoculating loops, etc.

microscope

Observation of bacterial morphology, etc.

Consumables/accessories

Laboratory routine glass instruments, centrifuge tubes, chromatography columns, petri dishes, inoculation needles, inoculating rings, gloves, etc.