Announcement for Inter-laboratory Comparison on Manganese and Permanganate Index in Water 2020
Introduction
We hereby announce the 2nd Inter-laboratory Comparison on Water Quality Analysis, which is focused on the analysis of manganese (Mn) and permanganate index (CODMn) in water 2020. This activity is open to academic, regulatory as well as commercial laboratories world-wide, especially those from developing and emerging countries. The organizer of this project is CAS-TWAS Centre of Excellence for Water and Environment (CEWE), an affiliation of the Research Center for Eco-Environmental Sciences (RCEES), Chinese Academy of Sciences (CAS). This project is supported by Certification and Accreditation Administration of People’s Republic of China (CNCA).
A draft report will be available by mid-December 2020, and the final report will be available to the participants by January 2021. All participants who have contributed to the results will receive a Certificate of Proficiency Testing in the activity.
Announcement 2020 for Inter-laboratory Comparison.pdf
Participants
We encourage all laboratories working in this field to participate and assess their analytical performance. To do this, participants are requested to fill out the Registration Form and mark the desired samples that you intend to determine.
We also include standard solutions of all analytes that should be analysed as solutions of known concentration, which may be used to check your own calibration solutions.
Test Samples
The test samples for manganese (Mn) is in concentrations of 0.10-1.50 mg/L with 2% nitric acid as matrix.
The test samples for permanganate index (CODMn) is in concentrations of 1.0-4.0 mg/L with 2% nitric acid as matrix.
The samples will be distributed by an international courier service to the participating laboratories.
Please Note:
In order to avoid delay or retention of the samples at customs, please inform us if there are import restrictions in your country for any of the samples.
Instructions for Analysis and Reporting
Further detailed instructions and reporting forms will be sent by e-mail simultaneously with the dispatch of the samples in August 2020.
The participating laboratories should:
● use your own standard operation procedures for pre-treatment and instrumental determination
● use your own reference standards for identification and quantification
● report one single concentration for each testing sample in each water matrix
● report determination limits for all measured analytes
Time Schedule
| Announcement | June 25, 2020 |
Return of registration form | August 10, 2020 |
Shipment of test material | August 2020 |
Confirmation of receipt of test material by participant | within 7 days after receipt |
Reporting of test results | within 30 days after receipt |
Publication of draft report on web-site | December 2020 |
Final report available to all participants | January 2021 |
Participation Fee
The participation fee for any combination of the analytes in one item is free.
As the inclusion of the matrix is new this year, all recipients of this invitation are encouraged to spread the words to possibly interested laboratories!
Co-ordinating Group
SI Ludan cas_twas@rcees.ac.cn Phone: +86 10 62849800 | ZHENG Bei szfxsys@126.com Phone: +86 10 62849135 |
E-mail Address
For all enquiries, please send by e-mail:cas_twas@rcees.ac.cn.
Postal Address
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences
18# Shuangqing Road, Haidian District, Beijing 100085, P.R.China
Tel: +86-10-62849136
E-mail: cas_twas@rcees.ac.cn
