GreenPrima TH7001 Water Hardness Reagent Kit

Overview

The GreenPrima TH7001 Water Hardness Reagent Kit is a precision-formulated, CE-compliant reagent set engineered for use with the Aqualysis 800 online water hardness analyzer. It enables fully automated, colorimetric titration-based quantification of total calcium and magnesium hardness in aqueous samples—expressed equivalently as calcium carbonate (CaCO₃). The reagent system operates on the principle of endpoint detection via photometric absorbance (extinction measurement) at a defined wavelength, following standardized complexometric titration with EDTA under controlled pH and buffering conditions. Designed specifically for continuous process monitoring, the TH7001 kit delivers high reproducibility and low inter-batch variability across extended operational cycles—critical for applications demanding regulatory traceability and long-term stability, including pharmaceutical water systems compliant with USP , EP 2.2.42, and WHO GMP Annex 4.

Key Features

• Optimized for Aqualysis 800 platform: Fully compatible with its integrated peristaltic pump, reaction cell, and dual-wavelength photometer
• Stable shelf life: ≥24 months when stored unopened at 2–8 °C; ≤6 months after opening under refrigerated, nitrogen-purged conditions
• Low consumption rate: Average reagent usage of ≤1.2 mL per analysis cycle (typical 3-minute measurement), minimizing operational cost and waste generation
• Pre-calibrated concentration: Delivered in sealed, light-protected vials with batch-specific certificate of analysis (CoA) including purity, water content (Karl Fischer), and spectrophotometric validation data
• Controlled interference profile: Formulated to suppress common matrix effects from Fe²⁺/Fe³⁺ (<3 ppm), Cu²⁺ (<0.2 ppm), Al³⁺ (<0.1 ppm), and Mn²⁺ (<0.2 ppm), as verified per ISO 6059:2022
• Traceable lot numbering: Each kit includes a unique serial number linked to raw material sourcing, synthesis logs, and QC release documentation

Sample Compatibility & Compliance

The TH7001 reagent is validated for use with representative water matrices meeting the Aqualysis 800’s inlet specifications: pH 4.0–10.0, temperature 5–40 °C, pressure 0.2–6 bar (optimal 1–2 bar), and turbidity <5 NTU. It supports compliance with multiple international standards governing water quality instrumentation and analytical method validation—including ASTM D1126-21 (Standard Test Method for Hardness in Water), ISO 6059:2022 (Water quality — Determination of calcium and magnesium — EDTA titrimetric method), and pharmacopeial requirements for purified water (USP , EP 2.2.42). All reagent components are non-hazardous per GHS classification and meet REACH Annex XVII restrictions. Full documentation supports GLP/GMP audit readiness, including instrument qualification (IQ/OQ/PQ) templates and reagent stability reports.

Software & Data Management

When deployed with the Aqualysis 800 analyzer, TH7001 reagent performance is tracked through the embedded firmware’s reagent lifecycle module. This includes automatic logging of reagent lot ID, installation date, estimated remaining volume, and cumulative analysis count—enabling predictive maintenance alerts and full chain-of-custody reporting. Data export conforms to IEEE 1451.2-compliant transducer electronic data sheet (TEDS) structure. Raw absorbance values, titration curves, endpoint timestamps, and QC flagging (e.g., drift detection, incomplete reaction) are stored locally (≥12 months at 1-min intervals) and transmitted via RS485 Modbus RTU or 4–20 mA analog output. Optional integration with LIMS or SCADA platforms supports 21 CFR Part 11-compliant electronic signatures and audit trails when paired with validated software add-ons.

Applications

• Pharmaceutical water systems: Real-time hardness monitoring of purified water (PW), water for injection (WFI), and clean steam condensate per FDA and EMA guidance
• Power generation: Boiler feedwater and condensate polishing loops in thermal and nuclear facilities (ASTM D1066, IAPWS RP-7)
• Industrial cooling circuits: Closed-loop recirculating systems where scaling risk mandates sub-1 ppm CaCO₃ control
• Municipal desalination pre-treatment: Monitoring RO membrane feed hardness to prevent fouling and optimize antiscalant dosing
• District heating networks: Continuous surveillance of make-up water hardness in northern climate systems prone to corrosion under low-pH conditions
• Food & beverage production: Verification of softening efficacy in CIP rinse water and ingredient water lines

FAQ

What is the measurement range supported by TH7001?
The TH7001 reagent is calibrated for a nominal hardness range of 0.447–625.8 ppm CaCO₃, corresponding to 0.08–12.5 mmol/L or 2.5–350 °dH. Actual span depends on selected dilution protocol and Aqualysis 800 configuration.
Can TH7001 be used with other analyzers besides Aqualysis 800?
No. TH7001 is chemically and volumetrically optimized for the Aqualysis 800’s fluidic architecture, titration kinetics, and photometric calibration. Cross-platform use voids performance warranties and invalidates compliance claims.
How often must the reagent be replaced?
Under typical operation (one analysis every 15 minutes), a standard 500-mL TH7001 kit lasts approximately 6–8 weeks. Replacement is triggered automatically by the analyzer’s onboard volume tracking or manually via firmware prompt.
Is TH7001 compliant with environmental disposal regulations?
Yes. All components are biodegradable and non-toxic per OECD 301B testing. Waste solution may be neutralized to pH 6–9 and discharged to municipal sewer systems in accordance with local wastewater ordinances.
Does TH7001 require temperature-controlled storage during shipment?
Yes. Shipments are packed with cold packs and insulated liners to maintain ≤15 °C throughout transit. Ambient exposure >25 °C for >48 hours requires revalidation prior to use.