Milli-Q® Purification Cartridge Kit for Non-Elix Feed Water
| Brand | Merck |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported |
| Model | Milli-Q® Purification Cartridge Kit for Non-Elix Feed Water |
| Purity Grade | ASTM Type I Ultrapure Water |
| Resistivity | 18.2 MΩ·cm @ 25 °C |
| Heavy Metals & Soluble Silica | < 0.1 ppb |
| Total Organic Carbon (TOC) | < 5 ppb |
| Microbial Count / Endotoxins | < 0.001 EU/mL |
| Particles (> 0.1 µm) | < 1 particle/mL |
Overview
The Milli-Q® Purification Cartridge Kit for Non-Elix Feed Water is a purpose-engineered consumable assembly designed exclusively for integration into Merck’s Milli-Q® ultrapure water systems operating with non-Elix–grade feed water sources—such as reverse osmosis (RO) permeate, deionized (DI) water, or distilled water. This kit does not replace the primary pretreatment stage but serves as the final polishing module, delivering ASTM Type I ultrapure water compliant with ISO 3696:1987, CLSI EP21-A, and USP . Its core function relies on synergistic, multi-stage purification: ion exchange via Jetpore® mixed-bed resin and IQo™ ion exchange media, adsorptive removal of organic contaminants using high-grade synthetic activated carbon beads, and submicron particulate retention. Unlike single-media cartridges, this dual-cartridge configuration ensures consistent electrochemical stability, low TOC leaching, and extended service life under variable feed water conductivity (typically 1–10 µS/cm), making it suitable for analytical chemistry, cell culture, molecular biology, and trace elemental analysis workflows requiring stringent water purity.
Key Features
- Two-component architecture: IPAK Meta® cartridge (primary ion exchange + organics removal) paired with IPAK Quanta® cartridge (secondary polishing + endotoxin suppression)
- Jetpore® mixed-bed resin engineered for high capacity and rapid equilibration, minimizing residual ion breakthrough across pH 4–10
- IQo™ ion exchange media featuring sub-100 µm functional beads—33% reduced volume vs. legacy Milli-Q® cartridges—enabling faster mass transfer kinetics and lower pressure drop
- Synthetic activated carbon with controlled pore distribution (BET surface area > 1,000 m²/g) for selective adsorption of chloramines, pesticides, and low-MW organics without silica leaching
- Pre-assembled, factory-validated cartridge set with integrated flow-path sealing to prevent bypass and ensure full contact time
- Compatible with Milli-Q® Advantage A10, Integral, and Direct-Q® systems configured for non-Elix feed input
Sample Compatibility & Compliance
This purification kit is validated for use with feed water meeting ISO 3696 Grade III specifications (conductivity ≤ 5 µS/cm at 25 °C, TOC ≤ 200 ppb, silica ≤ 0.1 mg/L). It is not intended for direct connection to municipal tap water or Elix®-produced water. All components are manufactured in Merck’s ISO 9001- and ISO 14001-certified facilities in Darmstadt, Germany, and undergo 100% electrical resistivity verification and endotoxin testing per USP . The assembled kit supports GLP/GMP environments through batch traceability (QR-coded cartridges), documented installation protocols, and compatibility with audit-ready system logs when used with Milli-Q® systems equipped with SmartConnect™ firmware.
Software & Data Management
While the cartridge kit itself is hardware-only, its performance is fully monitored and logged within the host Milli-Q® system’s embedded control software (v5.2+). Real-time parameters—including cumulative volume dispensed, resistivity decay trend, TOC excursion alerts, and cartridge remaining lifetime estimation—are stored with time-stamped metadata. When integrated with Milli-Q® Connect cloud services, usage history, calibration events, and alarm records comply with FDA 21 CFR Part 11 requirements for electronic records and signatures, including role-based access control and immutable audit trails.
Applications
- HPLC and UHPLC mobile phase preparation where baseline noise and column fouling must be minimized
- ICP-MS and GF-AAS sample dilution and standard preparation requiring ppt-level metal contamination control
- Cell culture media formulation and sterile filtration processes demanding endotoxin-free water
- Next-generation sequencing library preparation and CRISPR reagent synthesis sensitive to nuclease activity from organic residues
- Calibration of reference electrodes and pH meters requiring stable, low-conductivity rinse water
FAQ
Can this kit be used with Elix®-produced feed water?
No. This kit is specifically validated for non-Elix feed sources only. Using it with Elix® output may cause premature exhaustion of IQo™ media due to over-polishing and reduce overall system efficiency.
What is the typical service life under standard lab usage?
At 2 L/min flow rate and feed conductivity of 2.5 µS/cm, the recommended replacement interval is 6–9 months or after 2,500 L of ultrapure water production—whichever occurs first—as indicated by system resistivity trending below 18.0 MΩ·cm.
Is sterilization of the cartridges required prior to installation?
No. All cartridges are gamma-irradiated (25 kGy) and supplied in ISO Class 5 cleanroom-packaged, pyrogen-free blister packs. Sterilization post-manufacture is neither necessary nor recommended.
Does the kit include tubing or connectors?
No. The kit contains only the IPAK Meta® and IPAK Quanta® cartridges with pre-installed O-rings. Standard Milli-Q® quick-connect fittings and system-specific mounting hardware must be sourced separately per instrument model documentation.
