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New Branded GL 45 Synthetic Rubber Stopper Launched DWK Life Sciences has launched a new DURAN®
a GL 45 neck finish. Thanks to the virtual inertness of DURAN® borosilicate 3.3 glass, high value and sensitive materials are routinely stored in the DURAN® impermeable to most gases, including water vapour, and maintaining controlled conditions inside the glass bottle.
Alistair Rees, Duran Product Manager at DWK Life Sciences commented: “The new GL 45 stoppers meet the critical requirements of many high demand applications such as in anaerobic microbiology, or for the long-term storage of moisture or air-sensitive substances.”
In addition, the soft elastic bromobutyl rubber is reliably self-sealing supporting multiple needle punctures, providing secure access for sampling, or gas purging. Perfect for applications requiring gas purging or sample transfer via a syringe needle.
The stopper shape and dimensions have been carefully optimised for a perfect fit to the GL 45 neck. This means that it is usable with the full range of DURAN® GL 45 bottles that range in size from 100ml up to 20 Litres.
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Original GL 45 laboratory
bottles. However, most of the commercially available screw closures do not provide a seal that is reliability impermeable to gases and water vapour. Therefore we have developed the new DURAN®
stoppers from a high-purity bromobutyl rubber elastomer. Bromobutyl rubber is a well-understood material that is essentially
branded GL 45 synthetic rubber stopper specifically shaped for the reliable sealing of all laboratory bottles with
WWEM2018
The 8th International Conference and Exhibition on water, wastewater and environmental monitoring
21st - 22nd November
Network with Water Industry Experts...
Clipmax is a 10cm2 tissue flask with a standard microscope slide (25mm x 75 mm) as a growing surface. It is intended for cell culture, staining, and immunofluorescence as it does not interfere with fluorescent labels-directly on the slide. It is also useful for viral and mycoplasma testing, chromosome studies toxicity tests and immune cytology. The growth area of the slide is opto- mechanically treated for an optimal cell adhesion and proliferation.
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After the cell culture the medium chamber with the biocompatible seal ring can easily be detached from the slide. Cells may then be fixed, stained; cover slipped, and filed with the usual convenience and can be used directly for microscopic view. After removing the chamber of the Clipmax, the microscope slide with the cells can be fixed and stained directly on the microscope slide and can be used directly for immunocytochemistry and for various cell analyses. The transmission of the crystal- clear microscope slide is reported to be possible as of 250nm with a tailing at 280-300nm and stable between 350–400nm until plus 750nm (+92% transmission within 400-800nm). The fluoroscopic measurements are better than with glass, PC, or PS and the protein absorption is less than using glass slides. The thermal and optical features of the Clipmax slide are better than those made from PC, PET or TAC and in addition the slide is resistant to numerous chemicals such as Xylolite, alcohol, ether, (HCl, HNO3, H2SO4), (NaOH, NH4OH) or even H2O2. Also, biological coatings, i.g. with collagen, result in no loss of measuring signals. Finally, the handling of the Clipmax slide is much easier because there is no risk of injury, as it is plastic and not glass.
44785pr@reply-direct.com WWEM 2018
Advert.indd 1 29/01/2018 16:50
Cell Culture Flask with Removable Microscope Slide Provides Superior Measurements for Fluorescence Applications
INTERNATIONAL LABMATE - JANUARY/FEBRUARY 2018
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