JP | EN
Water quality management by ultramicroanalysis is indispensable for stable management of ultrapure water with little impurities.
Nomura Micro Science advances development of technologies to analyze ultratrace amount of impurities included in ultrapure water up to extremely low level every day.
We can analyze metals and ions in the concentration level of ppt to ppq (1ng-1pg per liter).
It is necessary to remove various contamination from environment for ultramicroanalysis. We conduct analylsis at our high purity dedicated clean room for analysis.
ICP-MS, GF-AAS, ion chromatography, electron microscopy-EDX (energy dispersive x-ray analyzer), TOC meter etc. are equipped for analysis in NMS.
We can provide analysis and evaluation services on contract in response to various needs: e.g. analysis of impurities contained in ultrapure water or high purity chemicals, analysis of trace impurities contained in materials, evaluations of leaching from containers or materials for which high purity is required.
Water Analyses Items
| Item ・ Element | Analysis method |
|---|---|
| Particles (particle sizes >= 0.1μm, >= 0.02μm, etc.) | Direct microscopic particle counting method (electron microscope), Particle counting method |
| Viable bacteria | Cultivation |
| Total silica | Concentration-GF-AAS |
| Boron | ICP-MS |
| Metals (Na, Fe, Cu, etc.) | ICP-MS |
| Ions (Cl-,SO42-,NH4+, etc.) | Ion chromatography |
Analysis Menu of Other Items
| Item | Description |
|---|---|
| Pure water and pure steam water for pharmaceuticals | Analysis based on Japanese Pharmacopoeia (endotoxin, etc.) |
| Impurities contained in high purity materials | Slurry particle size distribution, metal impurities, metals contained in the reagent |
| Observation of surface appearances, analysis of elemental composition | Scanning electron microscope X-ray analysis (SEM-EDX) |
| Leaching, etc. from high purity containers or materials | Evaluation of leaching from piping materials, etc. (metals, ions, organic matter, particles, etc. by immersion in the ultrapure water), and performance of ion exchange resins |
Acquisition of International Standard, ISO/IEC 17025
Regarding "Infinitesimal Quantity Element Analysis in Ultrapure Water," our Analysis Center acquired certification of ISO/IEC 17025, international standard of Japan National Laboratory Accreditation system, from PERRY JOHNSON LABORATORY ACCREDITATION, INC. (PJLA)
The acquisition is on analysis of 14 elements of principal metal elements specified by IRDS (International Roadmap for Devices and Systems) and boron in range (where appropriate) and detection limit of 1 ng/L to 500 ng/L.
Please refer to the following Certificate of Accreditation for details.
This certification proves that the relevant laboratory (analysis institute) is internationally recognized by third-party body (organization certified by ISO/IEC 17025) for its capability of reliable analysis in the certified range.
Regarding ISO/IEC 17025 (general requirements on capability of laboratories etc.)
ISO/IEC17025 is a standard which authoritative third-party certification organization certifies if laboratory (analysis organization)/ calibration organization is capable of producing precise measurement/ calibraion result.
Not only organization operation but also technological capacity of laboratories necessary to report precise measurement results is evaluated at ISO/IEC17025.
As well as independency of organizatio necessary to report precise measurement result and validation process of measurement result, technological capacity are supposed to be evaluated and accredited by acquiring this certificate.
We acquired this certificate from PERRY JOHNSON LABORATORY ACCREDITATION, INC. (PJLA) which had signed on for mutual recognition with ILAC and APLAC.
As an internationally-trusted analysis institute, our Analysis Center supplies precise analysis results to customers.
- Home
- Products & Services
- Fiduciary Obligation
