Product Introduction

The Sulfide Acidification Purge Instrument is developed and produced by our company in accordance with the national standards of the People's Republic of China. It fully meets the requirements for sample pretreatment and is suitable for the determination of sulfides in surface water, groundwater, domestic sewage, and industrial wastewater. This acidification purge instrument features easy control, simple operation, and high efficiency. It adopts a constant temperature water bath heating method with an integrated design for vertical acid addition, nitrogen purging, and acidification absorption. It can process 1-6 groups of samples simultaneously, includes a timing function, and automatically stops when the set time is reached.

Application Scope

It is suitable for scientific research, hydrology, and other institutions, making it an ideal pretreatment device for acidification-purge-absorption of sulfides in surface water, groundwater, domestic sewage, and industrial wastewater.

Main Features

1、Adopts constant temperature water bath heating method, ensuring uniform heating with real-time temperature display;

2、Integrated design for vertical acid addition, nitrogen purging, and acidification absorption. The hydrochloric acid inlet, gas inlet, and sample outlet are combined into one unit while remaining independent, ensuring non-interfering operation;

3、Flow rate adjustment range: 0.1-1L/min, with six independent channels for safe and effective experiment conduction;

4、Independent control and adjustment or shut-off of nitrogen flow for each sample; no need for lifting brackets, ensuring stability and no leakage;

5、Timed operation with automatic stop and alarm notification when the set time is reached.

Applicable Standards

GB/T 16489-1996 Water Quality-Determination of Sulfide-Methylene Blue Spectrophotometric Method
HJ/T 60-2000 Water Quality-Determination of Sulfide-Iodometric Method
HJ 833-2017 Soil and Sediment-Determination of Sulfide-Methylene Blue Spectrophotometric Method (Water Bath)

Technical Parameters

Manufacturer's Commitment
1. Strict Quality Inspection Procedures
Every production process of Shanghai Enji Instrument must be inspected and tested by the in-house quality inspection department. Only after passing the inspection, a transfer form is issued, with important steps recorded. Products can only proceed to the next process or leave the factory with the transfer form. Shanghai Enji is extremely stringent about equipment quality, aiming to produce high-quality, stable laboratory instruments to provide users with a better experience and support their scientific research work.
2. Extended Warranty Period
All our laboratory instruments are shipped free of charge and delivered to your door. All instruments come with a one-year warranty upon user acceptance. Any costs arising from product quality issues will be borne by us. After the warranty period, all spare parts will be supplied at low prices for life, and lifelong repair services are provided.
3. Comprehensive After-Sales Service
Service Principle: Fast, Decisive, Accurate, and Thorough
Service Goal: Win user satisfaction through service quality
Service Efficiency: For equipment malfunctions within or beyond the warranty period, Enji guarantees technical guidance via phone within 1-2 hours after receiving notification. A solution will be provided within 24 hours after receiving the fault report.