Методики

Использование органических растворителей в лабораторной лиофильной сушилке

Freeze-dryers were initially intended to be used with water as a solvent. With new applications, freeze-drying is consequently being used more and more in combination with organic solvents instead of water. Organic solvents and inorganic acids and bases are often used in research and development prior to lyophilisation of the sample. The behavior of these new types of samples during freeze-drying must therefore be considered prior to the process.

Acetone-soluble matter in Pulp

UniversalExtractor E-800: Extraction of pulp for the determination of acetone-soluble matter

Vicinal Diketones in Beer

Dist Line: Determination of vicinal diketones (VDK) in beer

Total SO2 content determination in reference standards by BUCHI method

MultiDist and BasicDist with BUCHI SO2 glass set: determination of total sulfur dioxide in reference standards sodium metabisulfite & HMS by the patented BUCHI Method with iodometric titration.

Selective Nitrogen determination ammonium nitrate reference standards direct devarda distillation

Kjel Line and MultiDist:

Nitrogen determination in sodium nitrate and ammonium dihydrogen phosphate by direct and Devarda distillation

Total SO2 content determination in shrimp paste by modified Monnier-Williams Method

MultiDist and BasicDist: Determination of total sulfur dioxide content in shrimp-paste by modified Monier-Williams method

Quality Control from Raw Fish to Fish Meal

ProxiMate NIR Up View: Process Control in the Fish and Fish Meal Industry

Sulfated Ash Determination for Pharmaceutical Quality Control

The wet digestion is used to remove all carbonous material from the sample. The remaining inorganic content can be weighed out, resulting in the sulfated ash, or then be used for further elemental analysis. The digestion is performed using concentrated sulfuric acid while heating the mixture. The heat is ramped automatically using the BUCHI Wet Digester B-440. Once the sulfuric acid has digested the sample and is evaporated, the sample is eventually ashed in a muffle oven to remove any remaining organic material.

Unlock extraction efficiency with a Rotavapor

Efficiency comparison of extraction process between lab and industrial Rotavapor

Separation of the triterpene amyrin by SFC

Application Note Sepiatec SFC purifying the triterpene amyrin

Separation of stevioside by SFC

Application Note Sepiatec SFC purifying stevioside

Purification of lavender essential oil by prep SFC

Application Note Sepiatec SFC purifying lavender essential oil

Purification of cannabinoids by SFC

Application Note Sepiatec SFC purifying cannabinoids

Refined bleached deodorized oil control

BUCHI NIR-Online® sensors for refined bleached deodorized oil control: Moisture, Phosphorous, Iodine value (IV), and Free Fatty Acids (FFA) with NIR

Residual oil content in white flakes

BUCHI NIR-Online® sensors for residual oil control in white flakes: Residual oil, moisture, and hexane with NIR

Quality Control of Palm Oil with NIR

BUCHI NIR-Online® sensors: Determination of Free Fatty Acids (FFA), Iodine Value (IV), and Color

Analyzing Soybean Meal with NIR

BUCHI NIR-Online® sensors: Determination of Oil Content, Moisture, Protein, and Fibre in Soybean Meal

Total Kjeldahl Nitrogen determination in wastewater

In this application note, an easy and reliable method for the determination of TKN in wastewater is introduced: Samples are digested with the SpeedDigester K-439 using Kjeldahl tablets Titanium. A steam distillation protocol followed by a colorimetric titration in boric acid is performed with the MultiKjel and Metrohm Eco Titrator, respectively, providing reliable and reproducible results.

Total fat in bakery products with E-800 HE

UniversalExtractor E-800 HE: Total fat determination in bakery products

Total fat in meat products with E-800 HE

UniversalExtractor E-800 HE: Total fat determination in meat products