Refractometer applications

In the pharmaceutical, chemical, food and beverage, flavor, fragrance and essential oils, petrochemical, metalworking and automotive industries, refractometers play an important role in quality assurance. They determine the refractive index of liquid or solid substances, from which their identity and quality as well as the concentration in binary or quasi-binary mixtures can be derived.

The progress of reactions and substance conversions are also readable via the refractive index. Refractometers are used in a variety of applications, from determining the purity and concentration of drug ingredients, to measuring sugar levels in food and beverages, to petroleum analysis.

Refractometers – fields of application and standards

Typical applications Analysed substances Special requirements Standards Recommended devices
PHARMACEUTICAL INDUSTRY
Characterisation tests in research and development. Identity test, purity control and concentration determination of raw materials, semi-finished products and end products Pharmaceuticals, infusion solutions, dialysis preparations, blood sera etc. Precision, compliance with standards Pharmacopoeia (USP, BP, JP, Ph. Eur.), GLP, FDA, NIST DR6100-T,
DR6300-T
CHEMICAL INDUSTRY
Characterisation tests in research and development.
Identity test, purity control and concentration determination of raw materials, semi-finished products and end products.
Tracking of chemical processes during production
Organic solvents, aliphatic or aromatic hydrocarbons, alcohols, salt solutions, acids, bases, stains, industrial oils, paints and varnishes, resins, glue components, tensides, extinguishing agents, polymer products, silicones, raw plastic materials etc. Exact temperature control within a wide temperature range, wide measurement range, variety of scales, variability of measurement methods, option of interval measurements AOAC,
OIML,
ASTM,
DIN,
CID
DR6100-T,
DR6300-T,
DR201-95,
DR301-95,
PR SERIES,
PRB21S
PETROCHEMICAL, AUTOMOTIVE AND AVIATION INDUSTRY, METAL PROCESSING AND BUILDING TECHNOLOGY
Identity test and concentration determination.
Outgoing goods inspection
Stability test
Lubricating oils, fuels, gear oils, wax, lubricants, cooling lubricants, de-icing agents and anti-freeze agents, battery acid, AdBlue, tensides, cleaners, windshield wiper concentrate etc. Easy handling, availability of the Brix scale, temperature compensation option AOAC,
OIML,
ASTM,
DIN,
CID
DR6000-T,
DR6200-T,
DR301-95,
HR SERIES,
PR SERIES,
PRB21S
FOOD INDUSTRY
Quality and purity control of raw materials and end products.
Determination of the sugar concentration.
Sugar, jams, honey, syrup, seasoning sauces, mustard and mayonnaise, convenience products, dairy products, baby food, egg products, oils, starch hydrolysis products etc. Fast measurement and easy handling, easy cleaning, availability of the Brix scale, routine analysis with high sample throughput AOAC,
OIML,

ASTM,
GLP,
ICUMSA

DR6000-T,
DR6200-T,
AR4,
AR2008,
HR SERIES,
PR SERIES,
PRB21S
SUGAR INDUSTRY
Determination of the sugar concentration in semi-finished products and end products.
Determination of the solids content in solutions.
Determination of the purity in combination with a polarimeter.
Sugar cane, beet pulp, molasses, refined sugar, syrup, invert sugar etc. Availability of the international sugar scale, availability of the Brix scale, maintenance-free ICUMSA,
GLP
DR6000,
DR6200-T,
PR SERIES,
PRB21
MANUFACTURERS OF AROMAS, FRAGRANCES AND ESSENTIAL OILS
Quality control of raw materials and auxiliary materials
M onitoring of the production of semi-finished products and end products
Essential oils (such as orange, lemon, lavender and peppermint oil), glyceric acid, Aromas and perfumes for the food, cosmetic and tobacco industry etc. Low sample volumes with a high aggressiveness, high accuracy Pharmacopoeia (USP, BP, JP, Ph. Eur.),
AOAC,
OIML,
GLP
DR6100-T,
DR6300-T,
DR6100-TF,
DR6300-TF
BEVERAGE INDUSTRY
Routine analysis with high sample throughput.
Quality and purity control of raw materials and end products.
Determination of the sugar concentration in juices and alcohol-free beverages
Determination of the alcohol or extract content in beer, spices, wine or spirits.
Quality control of dairy products
Sewage water check.
Fruit and vegetable juices, dietary beverages, beer, spices, wine, spirits, distillates, liquors, sugar concentrates, dairy products, aromas and colouring etc. Fast measurement and easy handling, easy cleaning, availability of the Brix scale AOAC,
OIML,
ICUMSA,
IAMFES,
GLP
DR6200-T,
DR6200-TF,
HR SERIES,
PR SERIES,
PRB21S
HOSPITALS AND PHARMACIES
Incoming and outgoing goods inspection.
Checking medicines for pharmacopeias.
Analysis of body secretions.
Medicines, infusion solutions, blood sera, dialysis preparations, urine etc. Easy handling, availability of the Brix scale, temperature compensation option Pharmacopoeia (USP, BP, JP, Ph. Eur.),
GLP
AR4,
DR301-95,
DR6100-T,
DR6300-T,
HR SERIES
TESTING LABORATORIES, INSTITUTES, TEACHING FACILITIES
Testing of foodstuff and pharmaceutical products.
Testing of the ompliance with national and international standards.
Training
Food and beverage samples, samples from research and development, acids, bases, solvents Food and beverage samples, samples from research and development, acids, bases, solvents Pharmacopoeia (USP, BP, JP, Ph. Eur.),
AOAC,
OIML,
ASTM,
ISO,
DIN,
GLP
AR4,
AR2008,
DR6100-T,
DR6300-T,
HR SERIES

Refractometer Applications by Area Download