This document introduces the low sodium measurement method for D10P-06 kit. The kit includes Dual Star dual channel pH/ISE benchtop meter, 8411BN sodium ion electrode, 800500U Ross reference electrode and other equipment and solutions. The preparation method of calibration standard solution and the storage requirements of electrodes are provided. The measurement precautions include using high-quality plastic containers, using fresh standard solutions, avoiding interference from hydrogen ions, etc. Suggestions for using direct measurement method and known addition method are given, and the importance of reducing sample-air contact is emphasized.
The D10P-06 kit provides a method for low‑sodium analysis in power‑plant boiler water and steam. It uses a separate half‑cell sodium ion electrode (8411BN) together with a Ross reference electrode (800500U) and includes all necessary accessories such as temperature‑compensation electrodes and storage solutions.
The manual details the preparation of sodium standard solutions (PN4, PN5, PN6), storage and cleaning of electrodes, instrument setup on a Dual Star pHISE meter, calibration steps, and the measurement protocol. It also lists safety and handling precautions to ensure accurate and repeatable results. This manual is written in Chinese.
| Sodium ion electrode model | 8411BN |
|---|---|
| Reference electrode model | 800500U |
| Temperature compensation electrode model | 927007MD |
| Electrode storage solution dilution ratio | 1:100 |
| Measurement resolution | 3 significant figures |
The storage solution should be changed weekly, or sooner if crystals appear or the solution becomes contaminated.
The sample pH should be greater than 10 to prevent oxygen ion interference.
Mix 1 part of the storage solution (841101) with 100 parts of de‑ionized water (1:100).
The instrument displays results with three significant figures.