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Ultima Gold LLT, 1x1L

Ultima Gold LLT is a safer liquid scintillation cocktail (LSC) ideal for determination of low levels of tritium (3H) in a wide range of water samples. Ultima Gold LLT has a large sample load capacity, extremely low background, designed for alpha/beta discrimination, and is quench resistant.

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1 x 1 L
145.00 USD
4 x 2.5 L
918.00 USD
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Our high flash-point liquid scintillation cocktail allows you to determine low levels of 3H in a wide range of water samples without requiring distillation. Ultima Gold LLT accepts up to 54% tap water, river water, rain water and even sea water, with 3H counting efficiencies of approximately 30% and with very low background levels. When used with the Tri-Carb® time-resolved low-level liquid scintillation analyzers, backgrounds are reduced even further, resulting in minimum detectable activities of less than 1.1Bq/L-1 (500 minute count time).


  • High water capacity - up to 54%
  • High counting efficiency
  • Very low background levels
  • For bioassay of urine up to 40% capacity, allowing detection levels of less than 10Bq/L-1 (500 minute count time)
  • Heavy metal radionuclide sample capacity, up to 18% of 2M HNO3, 2M HCl and 2M H3PO4 for alpha, beta and alpha/beta counting
  • No diffusion through polyethylene vials
  • High flash-point of approximately 140°C


Detection Method Radiometric
Grade Safer
Package Volume 1.0 L
Product Brand Name Ultima Gold
Quantity in a Package Amount 1.0 Units
Sample Type Liquid (aqueous), Solid (soluble)
Shipping Condition Ambient
Unit Size 1 x 1 L
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Application Note

LSC Cocktails - Elemental Composition

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.

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LSC in Practice - Counting Aqueous Samples by LSC

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 ...

LSC in Practice - Measurement of 3H in Dilute Sulfuric Acid

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 laborat ...

PDF 121 KB


Radiometric Reagents Guide 2010-2011

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 t ...

Scintillation Cocktails & Consumables - For every liquid scintillation counting application

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 portfoli ...

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Solutions for Liquid Scintillation Counting

With over 60 years of experience, PerkinElmer provides our customers with total liquid scintillation counting (LSC) solutions for a wide variety of applications.

PerkinElmer’s LSC products are convenient, easy-to-use, save preparation time and minimize laboratory errors. Our carefully-contr ...

PDF 680 KB