Description
Specifications Table
Product Name – CHLORIDE IC STANDARD (Cl⁻ 1000 mg/L in H₂O) – Traceable to NIST
Quantity/Pack Size – 100 ml
Form – Liquid solution
Grade – Certified Reference Material (CRM)
Application – Ion chromatography (IC), chloride analysis, calibration
Product Overview
This chloride ion standard solution delivers a precise 1000 mg/L concentration in ultra-pure water, meticulously calibrated and traceable to NIST (National Institute of Standards and Technology) for unmatched accuracy in ion chromatography (IC) applications. The solution is prepared using high-purity reagents and deionized water (Type I, 18.2 MΩ·cm) to eliminate contaminants, ensuring consistent performance in quantitative chloride analysis. Its stability is guaranteed through rigorous quality control, with each batch tested for homogeneity and long-term reliability under standard lab conditions. The solution is packaged in HDPE bottles with tamper-evident seals to prevent contamination or degradation during storage. Designed for seamless integration into routine lab workflows, this standard eliminates variability in calibration curves, reducing the need for frequent recalibration. The NIST traceability provides documented assurance of measurement accuracy, making it ideal for compliance with ISO 17025, GLP, or other regulatory standards requiring validated reference materials. The absence of preservatives or stabilizers ensures minimal interference with chromatographic separations, while the low background matrix simplifies method development for complex samples.
FAQs
1. What is the shelf life of this chloride IC standard after opening?
The standard remains stable for 12 months from the date of manufacture when stored unopened at 15–25°C. Once opened, use within 3 months or discard if turbidity or precipitation is observed, as exposure to air may introduce contaminants over time.
2. Can this standard be used for anion analysis in environmental water samples?
Yes, the 1000 mg/L concentration is suitable for preparing working standards via serial dilution to match the expected chloride levels in environmental matrices like groundwater, wastewater, or soil extracts, provided the sample matrix does not introduce interfering ions.
3. Is this standard compatible with suppressed or non-suppressed IC systems?
The solution is formulated for compatibility with both suppressed and non-suppressed ion chromatography systems. However, for suppressed IC, ensure the eluent and suppressor are optimized to avoid baseline shifts due to the high chloride concentration.
4. How should I dispose of unused or expired chloride standard?
Neutralize small quantities with a compatible base (e.g., sodium hydroxide) to pH 6–8 before disposing of as non-hazardous chemical waste, following local environmental regulations. For larger volumes, consult a licensed waste management facility.
5. What documentation is provided with this standard for traceability?
Each bottle includes a Certificate of Analysis (CoA) detailing the certified chloride concentration, uncertainty values, expiration date, batch number, and NIST traceability reference, along with recommended storage and handling instructions.
