Description
Specifications Table
Product Name – Tellurium, plasma standard solution, Specpure®, Te 1000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in 2% HNO₃)
Grade – Specpure® (ultra-high purity, 99.999% trace metals basis)
Application – ICP-OES, ICP-MS, AAS calibration; trace element analysis
Product Overview
This Specpure® Tellurium plasma standard solution delivers exceptional purity (1000µg/ml in 2% HNO₃ matrix) for demanding analytical applications requiring ultra-low background interference. Manufactured under ISO 17034 and ISO/IEC 17025 accredited processes, the solution offers lot-specific certificates of analysis with full traceability to NIST SRMs, ensuring reliable quantification in trace metal analysis. The nitric acid-stabilized formulation minimizes precipitation risks while maintaining long-term stability, with a shelf life of 24 months when stored unopened at 15-25°C. Its ultra-low impurity profile (≤10 ppb for most contaminants) makes it particularly suitable for environmental testing, geological surveys, and semiconductor material analysis where tellurium quantification at ppb levels is critical. The solution comes in HDPE bottles with tamper-evident seals and is compatible with most autosampler systems. For laboratories requiring custom dilutions, the 500ml pack size provides cost-effective bulk preparation while the 50ml and 100ml options offer convenience for routine calibration.
FAQs
1. Can this tellurium standard be used for both ICP-OES and ICP-MS applications?
The solution is specifically formulated for compatibility with both ICP-OES and ICP-MS instruments. The 2% HNO₃ matrix ensures complete ionization while minimizing polyatomic interferences that could affect tellurium detection at 125.490 nm (primary ICP-OES line) or m/z 128/130 (ICP-MS isotopes). For ICP-MS applications, we recommend verifying your instrument’s acid tolerance as some systems may require additional dilution.
2. What is the difference between Specpure® and regular analytical grade standards?
Specpure® standards undergo additional purification steps including sub-boiling distillation and ion exchange chromatography to achieve impurity levels typically 10-100x lower than standard analytical grade solutions. While regular standards may contain up to 100 ppb of individual contaminants, Specpure® solutions maintain most impurities below 10 ppb, with critical elements like lead, mercury, and arsenic often at sub-ppb levels. This purity is essential when analyzing complex matrices where spectral overlaps could occur.
3. How should I handle potential precipitation in this solution?
Tellurium in nitric acid solutions can form insoluble tellurium dioxide if exposed to light or temperature fluctuations. Store the unopened bottle at 15-25°C away from direct sunlight. Once opened, purge with argon before resealing and use within 6 months. If you observe any cloudiness, warm the solution to 40°C in a water bath for 15 minutes with occasional swirling – do not microwave. For long-term storage of diluted working standards, add 0.5% v/v HCl to the dilution matrix.
4. What alternatives are available if I need a different tellurium concentration?
For lower concentrations, you can prepare working standards by serial dilution using 2% HNO₃ as the diluent. For ready-made alternatives, we offer 100µg/ml and 10µg/ml tellurium standards in the same Specpure® grade. Note that concentrations below 10µg/ml may require daily preparation due to adsorption risks on container walls. For organic matrices, consider our organotellurium standards in toluene or xylene solvents.
5. Does this solution require any special disposal procedures?
The solution contains tellurium compounds classified as hazardous waste under Indian regulations. Collect rinses and unused portions in a dedicated HDPE container labeled “Heavy Metal Waste – Tellurium Containing.” Neutralize with sodium carbonate before disposal through an authorized hazardous waste handler. Never dispose of tellurium solutions in regular laboratory drainage systems as it can form toxic hydrogen telluride gas in anaerobic conditions.
