Description
Specifications Table
Product Name – Gallium, 1000 ppm ICP-ML, single-element standard Quantity/Pack Size – 100 ml Form – Liquid (aqueous solution in nitric acid) Grade – ICP-ML (Inductively Coupled Plasma-Mass Spectrometry) Application – Trace elemental analysis, calibration, quality control
Product Overview
This Gallium single-element standard (1000 ppm) is meticulously formulated for high-precision ICP-ML applications, ensuring reliable quantification in trace metal analysis. The solution is prepared in ultra-pure nitric acid matrix to minimize interferences and maximize instrument compatibility. Certified against NIST-traceable reference materials, it guarantees accuracy with ±1% tolerance and long-term stability when stored properly. The low-particle formulation reduces nebulizer clogging, while the sealed amber bottle prevents photodegradation. Ideal for laboratories requiring consistent calibration curves, this standard eliminates batch-to-batch variability. The 100 ml pack size offers cost-effective volume for frequent users while maintaining freshness. Each lot undergoes rigorous multi-point verification including ICP-OES cross-checking to ensure homogeneity. The solution’s pH is optimized for direct use without dilution, saving preparation time. Compatible with most autosamplers, it features a tamper-evident cap for quality assurance. The accompanying Certificate of Analysis provides full elemental impurity profiling, including limits for potential interferents like zinc and aluminum.
FAQs
1. What is the shelf life of this Gallium standard when unopened?
The unopened standard maintains its certified concentration for 24 months from the date of manufacture when stored at 15-25°C away from direct sunlight. The amber bottle provides additional protection against light-induced degradation.
2. Can this standard be used for ICP-OES applications?
While optimized for ICP-ML, this 1000 ppm Gallium standard can be used for ICP-OES after appropriate dilution. The nitric acid matrix (2% v/v) is compatible with both techniques, though you may need to adjust concentration to match your OES working range.
3. What materials are used for the bottle and cap?
The solution comes in a Type I borosilicate glass bottle with a PTFE-faced polypropylene cap. This combination ensures minimal leaching of trace elements while providing excellent chemical resistance to the nitric acid matrix.
4. How should I handle potential precipitation in the solution?
Gallium nitrate solutions may form slight precipitation over time. If observed, warm the bottle to 30-40°C in a water bath and gently invert 10-15 times to redissolve. Avoid vigorous shaking to prevent bubble formation that could affect pipetting accuracy.
5. What dilution factors are recommended for typical analysis?
For most ICP-ML applications, a 1:100 dilution (10 µL standard + 990 µL diluent) yields a 10 ppb working solution. For higher concentration needs, a 1:10 dilution (100 µL + 900 µL) provides 100 ppb. Always use the same acid matrix (2% HNO₃) for dilutions to maintain matrix matching.
