Applikationen

SpeedExtractor E-916, Multivapor P-6: Extraction of 3-MCPD and glycidyl-esters from infant formula

SpeedExtractor E-916, Multivapor, Hydrolysis Unit E-416, Extraction Unit E-816 SOX: Comparison of different extraction methods: Pressurized Solvent Extraction (PSE) using SpeedExtractor E-916 versus Weibull Stoldt method using Hydrolysis Unit E-416 and Extraction Unit E-816 SOX

SpeedExtractor E-916, Syncore® Analyst R-12: Extraction of Alternative Brominated Flame Retardants from Harbour Porpoises (Phocoena phocoena)

SpeedExtractor E-916, Multivapor™: Fat determination of milk powder and infant formula samples without hydrolysis

SpeedDigester K-439, Kjel Line and MultiDist: Nitrogen and protein determination in milk powder according to the Kjeldahl method with Kjeldahl tablets and hydrogen peroxide.

SpeedDigester K-439, Kjel Line and MultiDist: Steam distillation and Potentiometric determination of Total Kjeldahl Nitrogen (TKN) according to the kjeldahl method in water and wastewater along with determination of Limit of Detection (LOD) and Limit of Quantification (LOQ).

Stickstoffbestimmung in pharmazeutisch aktiven Peptiden

Die Bestimmung des Stickstoff- und Gesamtproteingehaltes in pharmazeutischen Produkten wird im Europäischen Arzneibuch (Ph.Eur.) in den Abschnitten 2.5.9 und 2.5.33 Methode 7 beschrieben [1, 2]. In der US-Pharmakopöe (USP) ist die Stickstoffbestimmung in Abschnitt 461 beschrieben [3]. Die Ph.Eur. sieht die Rücktitration unter Verwendung eines Methylrot-Mischindikators vor, die USP verwendet die potenziometrische Borsäure-Titration.

SyncorePlus Analyst: 

Determination of Polycyclic Aromatic Hydrocarbons in water using SyncorePlus with Solid Phase Extraction (SPE) cover

Discover how the Industrial Rotavapor® R-220 Pro Extraction is used in the extraction and concentration of turmeric 

SyncorePlus: Study on the performance of the AutoDest and AutoDry option.

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.

Efficiency comparison of extraction process between lab and industrial Rotavapor

SpeedExtractor E-916, Multivapor™: Determination of Polymer Plasticizers in Polyamide samples using the SpeedExtractor E-916

Proteinbestimmung in pflanzlichen Fleischalternativen

KjelDigester K-449, KjelMaster K-375 mit KjelSampler K-377: Stickstoff- und Proteinbestimmung in pflanzlichen Fleischalternativen nach der Kjeldahl-Methode

SpeedExtractor E-916, Multivapor™: Fat determination in Mayonnaise and Chocolate using the SpeedExtractor E-916

Syncore® Anwendungsbroschüre

Erfahren Sie wichtige Aspekte für die Verdampfung ihrer spezifischen Lösungsmittel, Lösungsmittelgemische und die Probenkonzentrierung auf ein vordefiniertes Volumen. Dieses Handbuch unterstützt Sie bei der Optimierung Ihrer Prozesse mit Beispielanwendungen, Checklisten, Tipps, Regeln, Tabellen und Tests.

Productivity Handbook for Industrial Evaporation

Sichern Sie sich Ihr KOSTENLOSES „Productivity Handbook for Industrial Evaporation“.

Nutzen Sie das Know-How von BÜCHI, um Ihren Rotavapor® individuell anzupassen und bestmöglich einzusetzen.

Handbuch für parallele Verdampfung

Dieser Leitfaden beschreibt Aspekte der gleichzeitigen Konzentrierung mehrerer Proben auf ein vordefiniertes Restvolumen von Lösungsmitteln gemäss den US EPA-Methoden mit Syncore® Analyst.

Achieve higher distillation efficiency when using a rotary evaporator by reading on the impact of immersion angle.

The evaporation rate of a rotary evaporator depends to a large extend on the immersion angle of the evaporating flask. The flatter the immersion angle, the higher the evaporation rate. This is, among other reasons, due to the fact that a flat immersion angle increases turbulence inside the evaporating flask, hence accelerating the evaporation. However, with a flatter immersion angle the evaporating flask cannot be as deeply immersed in the heating bath medium compared with a steep immersion angle. This can be an issue especially working with smaller evaporating flasks. Generally speaking, a 40 degrees immersion angle leads to a maximum efficiency rate without restriction in handling or risking losing parts of the sample due to over spilling and bumping into the receiving flask.

Achieve higher distillation efficiency when using a rotary evaporator by reading on the impact of flask size.

Generally, the larger the evaporating flask the greater is the evaporation rate. This is due to the greater turbulence inside a larger flask, enlarging the active surface and leading to a higher evaporation output. On the other hand, smaller flasks are advantageous when the residue needs to be collected for further quantitative analyses. Moreover, larger flasks generally allow easier handling.