Applikationen

SpeedExtractor E-916, Multivapor™: Determination of Solvent Extractables from Rubber using SpeedExtractor E-916

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

The cell viabilities of microorganisms during storage are of economic importance for probiotic dietary food and feed supplements. By combining granulation and freeze drying, dust free particles homogeneous in size and composition can be obtained. This will enable a good particle flowability, an easier dosage and a faster reconstitution of the product can be obtained. Encapsulator as a granulator to prill the yeasts suspension into liquid nitrogen and form monodispersed beads that will then be freeze dried.

Encapsulator B-390 / B-395 Pro: Encapsulation of methotrexate in alginate & hyaluronic acid microbeads for controlled release in cancer treatment

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.

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

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.

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

The evaporation rate is noticeably greater if the evaporating flask’s glass walls are thinner. The simple reason is that thinner glass allows better heat transmission from the heating bath through the glass of the evaporating flask to the solvent. Generally speaking, the glass wall thickness should be selected to be as thin as possible, while still being robust enough to prevent breakages of the evaporating flask even at very low pressures. Concerning both these issues, the optimum thickness for a 1 L evaporating flask is between 1.5 and 2.0 mm.

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

The evaporation rate of a rotary evaporator is greater than that of static distillation apparatus. Moreover, the evaporation rate increases with higher rotation speed. This is, among other factors, due to the greater surface area inside the evaporating flask at one given time. Especially significant is the dissipation at lower rotation speeds. For instance an increase in speed above 200 rpm has a relatively low influence on the evaporation output. A rotation speed above 300 rpm can result in mechanical problems, vibrations and spillage from the heating bath. Thus, considering the advantages and disadvantages of different rotation speeds, the optimum rotation speed is around 250 to 280 rpm.