Internal Standards for LSC counting efficiency calibration
Eckert & Ziegler Analytics offers a wide range of NIST traceable, calibrated solutions for the determination of the counting efficiency by internal standardization. They are provided in a 10 ml flame sealed glass ampoule with an active volume of 10 ml and an activity tolerance of +/- 20%. Customized solutions are available on request.
Nuclide | Product Code | Activity | Total | Activity | Measurement | Chemical Form |
H-3 (Tritium) | 8003-10FSAH-400KBQ | 40 | 400 | 2.4 x 106 | <3.5% | Tritium labeled water |
H-3 (Tritium) | 8003-10FSAT-400KBQ | 40 | 400 | 2.4 x 106 | <3.5% | Tritium labeled Toluene |
C-14 | 8014-10FSAT-100KBQ | 10 | 100 | 6 x 105 | <4% | C-14 labeled Toluene |
C-14 | 8014-10FSAG-100KBQ | 10 | 100 | 6 x 105 | <4% | C-14 labeled glucose (50µg/g) |
C-14 | 8014-10FSAC-100KBQ | 10 | 100 | 6 x 105 | <4% | Na2CO3 in 0.001M NaOH, |
Am-241 | 8241-10FSA-100KBQ | 10 | 100 | 6 x 105 | <2% | Americium Chloride in 1M |
Ca-45 | 8045-10FSA-100KBQ | 10 | 100 | 6 x 105 | <6% | Calcium Chloride in 0.1M |
Cd-109 | 8109-10FSA-100KBQ | 10 | 100 | 6 x 105 | <2% | Cadmium Chloride in 0.1M |
Cl-36 | 8036-10FSA-100KBQ | 10 | 100 | 6 x 105 | <4% | Sodium Chloride in 0.0005M |
Co-60 | 8060-10FSA-100KBQ | 10 | 100 | 6 x 105 | <1.5% | Cobald Chloride in 0.1M |
Cr-51 | 8051-10FSA-100KBQ | 10 | 100 | 6 x 105 | <2% | Chromium Chloride in 0.1M |
Cs-137 | 8137-10FSA-100KBQ | 10 | 100 | 6 x 105 | <2% | Cesium Chloride in 0.1M |
Fe-55 | 8055-10FSA-100KBQ | 10 | 100 | 6 x 105 | <4% | Ferric Chloride in 0.1M |
I-125 | 8125-10FSA-100KBQ | 10 | 100 | 6 x 105 | <3.5% | Sodium Iodide in 0.1M NaOH |
I-129 | 8129-10FSA-100KBQ | 10 | 100 | 6 x 105 | <3.5% | Sodium Iodide in 0.1M NaOH |
Ni-63 | 8063-10FSA-100KBQ | 10 | 100 | 6 x 105 | <3% | Nickel Chloride in 0.1M |
S-35 | 8035-10FSA-100KBQ | 10 | 100 | 6 x 105 | <3.5% | Sodium Sulfate in H2O, |
Sr-90 | 8090-10FSA-100KBQ | 10 | 100 | 6 x 105 | <2% | Strontium Chloride in 0.1 M |
Tc-99 | 8099-10FSA-100KBQ | 10 | 100 | 6 x 105 | <3% | Sodium pertechnetate in |
Low-Background (dead) Water
This freshwater is collected from an artesian well that is screened at a depth of >100 m below the water table. Based upon hydraulic conductivity this water has not been in contact with the atmosphere for several thousand years and should therefore contain undetectable amounts of tritium. Analysis of this water by the University of Miami Tritium Laboratory indicates that the tritium levels are below their detection limit (<0.1 TU). This water is suitable for use as analytical instrument, field and equipment blanks. The water will be delivered in 1 liter polythene bottles. A copy of the batch analysis will be provided.
Product Code: BGW-1LB |
1 Liter Low-Background Water |
Tritium (H-3) activity less than 0.012 Bq/kg (12 pBq/g) |
Batch Analysis Certificate provided |