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Ultima Gold™ AB is the world's first liquid scintillation cocktail specifically designed for alpha/beta discrimination in LSC. Ultima Gold™ AB is based on a unique, high flash-point solvent formulation that provides the slow pulse decay characteristics necessary for effective alpha/beta discrimination. The excellent sample holding capacity of Ultima Gold™ AB for a variety of both aqueous and acidic sample types makes it the cocktail of choice for most alpha/beta LSC applications.
|Product Brand Name||Ultima Gold|
|Sample Type||Liquid (aqueous), Solid (soluble), Solid (insoluble), Filter (dry), Filter (wet), Filter (dissolved)|
|Unit Size||1 L|
A researcher wanted to know the percentages of the elements present in various commonly used cocktails to satisfy regulations concerning the disposal of cocktail waste by incineration.
The primary objective of all sample preparation procedures for liquid scintillation counting (LSC) is to obtain a homogeneous solution for efficient energy transfer from the sample to the LS cocktail. Aqueous solutions are some of the simplest and most commonly found in liquid scintillation analysis. In general, they provide the environment necessary for many assays and separations, and include the most encountered solvent media for the numerous radioisotopes usedin LSC.
One of PerkinElmer’s field sales engineers forwarded a request for assistance regarding the selection of the optimal cocktail for use with a sample containing 4.5 mL deionized water and 0.036 N sulfuric acid. The nuclide of interest was 3H, and polyethylene vials were used extensively in the laboratory.
Filter counting, or solid support counting as it is sometimes known, is probably best described as heterogeneous counting. The main difference between heterogeneous counting and homogeneous countingis that heterogeneous counting relies on 2 p geometry while 4 p geometry applies to homogeneous counting. An explanation of the terms 2 p and 4 p geometry is needed to appreciate the differences between the two counting techniques. I
For over 50 years PerkinElmer has been a leading supplier of radiochemicals, liquid scintillation cocktails, vials and nuclear counting detection instruments. Today is no different. We have always been committed to providing you products for all of your radiometric needs and we are still committed today.
Address any liquid scintillation counting need with PerkinElmer’s liquid scintillation cocktails, tissue solubilizers and specialty chemicals. You can be confident that our products meet the highest standards of performance, user safety, environmental safety, and user convenience. Plus, our portfolio of application notes can assist you with even the most complex liquid scintillation counting applications you perform in your research.