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Free Sample: Whatman GD/X* Syringe Filters

Reduce waste, cost and sample prep time with Whatman GD/X* Syringe Filters. Quickly filter three to seven times more volume more

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Free Sample: Whatman GD/X* Syringe Filters

Whatman GD/X Syringe Filters are specifically designed for high-particulate-loaded samples.   Designed with four filtration layers, these filters substantially reduce blockage and increase volume throughput.   In fact, GD/X Syringe Filters can process three to seven times more sample volume than sta more

News Whatman

• GE Healthcare completes acquisition of Whatman plc

  GE Healthcare, a unit of General Electric Company announced that it has completed the acquisition of Whatman plc, a global supplier of filtration products and technologies. The acquisition expands GE Healthcare's offering for life science research and biopharmaceutical manufacturing. GE Healthcare more

• Mark Fry to lead Oxyphen's North American expansion

  Oxyphen AG announced that it has signed a sales and marketing agreement with Mark Fry to increase market penetration in North America. Fry will support Oxyphen's ongoing expansion efforts in North America to increase the technology and manufacturing leadership position and to serve the OEM opportuni more

• Howard Kelly Joins Oxyphen's Board of Directors

  Oxyphen AG announced that Howard Kelly has joined the company's Board of Directors. Kelly will support Oxyphen's ongoing international expansion and efforts to reach a technology and manufacturing leadership position to serve OEM companies in areas of track-etched membrane applications. Targeted sec more

White papers Whatman

• Agrisera Western Blot recommendations, troubleshooting and protocol
  

  Each antibody-antigen interaction has unique characteristics. A protocol giving good results for one antibody-antigen pair might found to be unsatisfactory for a second antibody even on the same sample. The interaction of antisera with protein epitopes in Western blot dependens upon a number of factors, all contributing to the final signal/noise ratio. Knowledge and control of those factors allows for modifications and optimization of the procedure. Polyclonal antibodies (serum or IgY-fractions from egg yolk) usually contain a number of different antibodies interacting independently with different epitopes on the target used for immunization. This number is limited for peptide-antigens but if recombinant or native proteins have been used for immunization the signal obtained has to be regarded as cumulative (=caused by several different types of antibodies present in the serum/IgY used) more

• Isolation of DNA from Dried Blood Spot Using the High Pure PCR Template Preparation Kit
  

  DNA isolation from anti-coagulated whole blood for subsequent molecular analysis by PCR methods is well-established. In a standard laboratory setting, the blood is shipped in a blood collection vial containing the anticoagulant after phlebotomy. However, it might not always be possible to have blood samples shipped immediately, and for longer storage cooling is required. Freezing anticoagulated blood samples might interfere with the efficiency of DNA isolation afterwards. Thus, the collection and storage of whole blood samples on special filter paper has become more and more popular since it provides a simple and easy method to ship and to store the samples. Evaluation of established DNA isolation kits and procedures is required in order to recommend a protocol for DNA isolation from dried blood spots (DBS). Here, we report the assessment of the High Pure PCR Template Preparation Kit for DNA Isolation from DBS more

Publications Whatman

• The use of dried cerebrospinal fluid filter paper spots as substrate for PCR diagnosis of the aetiology of bacterial meningitis in the Lao PDR

  Abstract We investigated whether dried cerebrospinal fluid (CSF) conserved on filter paper can be used as a substrate for accurate PCR diagnosis of important causes of bacterial meningitis in the Lao PDR. Using mock CSF, we investigated and optimized filter paper varieties, paper punch sizes, el more

• Development and validation of a sensitive LC‐MS/MS method for determination of tacrolimus on dried blood spots

  ABSTRACT A bioanalytical method for the quantification of tacrolimus (TAC) on dried blood spots (DBS) using liquid chromatography, electrospray ionization coupled with tandem mass spectrometry (LC‐ESI‐MS/MS) was developed and validated. It involves solvent extraction of a punch disk of DBS follo more

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