Description
Specifications Table
Product Name – Barium, plasma standard solution, Specpure®, Ba 1000µg/ml
Quantity/Pack Size – 100ml, 50ml, 500ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity)
Application – Atomic absorption spectroscopy (AAS), ICP-OES, ICP-MS, trace metal analysis
Product Overview
The Barium plasma standard solution from Specpure® delivers exceptional purity and consistency, making it ideal for demanding analytical applications. Formulated at a concentration of 1000µg/ml, this solution is prepared using ultra-high-purity barium compounds dissolved in a stabilized acidic matrix to prevent precipitation and ensure long-term stability. The Specpure® grade guarantees minimal interference from trace contaminants, allowing for accurate calibration curves and reliable quantification in atomic spectroscopy techniques. The solution is packaged in high-density polyethylene (HDPE) bottles to maintain integrity and prevent leaching, with tamper-evident seals for added security. Each batch undergoes rigorous quality control, including ICP-OES verification, to confirm concentration accuracy and absence of spectral interferences. The low-particulate formulation reduces clogging risks in nebulizers and spray chambers, while the acidic pH (typically 1-2% HNO₃) ensures compatibility with most ICP and AAS instruments. This standard is particularly valuable for laboratories requiring NIST-traceable references or ISO 17025 compliance, though it does not include a certificate of analysis (available upon request for bulk orders). The 1000µg/ml concentration allows for easy dilution to working standards while minimizing volumetric errors during preparation.
FAQs
1. What is the shelf life of this barium plasma standard solution?
The solution remains stable for 24 months from the date of manufacture when stored unopened at 15-25°C. Once opened, use within 6 months or discard if turbidity appears.
2. Can this standard be used directly in ICP-MS without further dilution?
Direct use is not recommended due to the high 1000µg/ml concentration, which may exceed the linear range of most ICP-MS instruments. Typical working concentrations are 1-100µg/L, requiring dilution by a factor of 10,000-1,000,000x.
3. What matrix modifiers are compatible with this barium standard?
The solution is compatible with common modifiers like 0.2% nitric acid, 0.1% hydrochloric acid, or 0.5% ammonium phosphate. Avoid adding organic solvents or strong bases, which may cause precipitation.
4. How does the Specpure® grade differ from analytical reagent grade?
Specpure® standards undergo additional purification steps to reduce trace metal contaminants below 10 ppb for most elements, whereas AR grade typically allows contaminants up to 100 ppm. This makes Specpure® suitable for sub-ppb detection limits.
5. Is this solution certified for environmental testing under CPCB guidelines?
While the purity meets CPCB requirements for water and soil testing, the solution itself is not pre-certified. Laboratories must validate it against their specific SOPs or use it as a secondary standard traceable to NIST SRMs.
