COD ammonia nitrogen total phosphorus total nitrogen multi parameter water quality analyzer

GNST-990Stype

COD, ammonia nitrogen, total phosphorus, total nitrogenmulti-parameter water qualitymeasuring instrument

Product Introduction

GNST-990S adopts imported deuterium and tungsten lamp light sources, developed according to national environmental standards, with a brand new optical path design, internationally purchased accessories, high-performance configuration, 7-inch color touch display screen, directly displaying various scanning curves and spectra. It uses an ARM processor, which can perform more than ten data averaging calculations per second and store 2000 test data or 500 working curves. It can detect COD, ammonia nitrogen, total phosphorus, total nitrogen, and heavy metals. In standard detection of total nitrogen concentration in water, the determination of total nitrogen does not require the addition of concentrated sulfuric acid, making detection simpler and faster.

Application field

This series of instruments can perform qualitative and quantitative analysis of sample substances in the ultraviolet and visible spectral regions, and can be widely used in departments such as medicine and health, clinical testing, biochemistry, petrochemicals, environmental testing, food hygiene, and quality control. It can also be used as a teaching demonstration and experimental instrument for related courses in higher education institutions.

Measurement principle

The determination of COD is based on the "HJ/T 399-2007 Water Quality Chemical Oxygen Demand Rapid Digestion Spectrometric Method"

The determination of ammonia nitrogen is based on the "HJ 535-2009 Determination of Ammonia Nitrogen in Water Quality - Nessler's reagent spectrophotometric method"

The determination of total phosphorus is based on "GB 11893-89 Determination of total phosphorus in water quality - Ammonium molybdate spectrophotometric method"

The determination of total nitrogen is based on HJ636-2012 Water Quality Total NitrogenThe determination Alkaline potassium persulfate digestion UV spectrophotometry

Product Features
（1) Adopting a high-resolution (1024 * 768) dot matrix 7-inch color touch LCD display, the operation interface is friendly and simple.

(2) The instrument supports cloud storage function and can easily achieve WeChat scanning, which facilitates customers' application scenarios.

（3）The instrument adoptsThe "Shining Holographic Grating" high-resolution C-T monochromator uses a 24 bit high-precision AD chip from AD Corporation in the United States, enabling economical instruments to have high resolutionqualityLow impurity that only instruments possessRemote control(Less than)0.1T%）、 High precision and high stability (0.002A).

（4）The instrument has powerful storage capabilities and can store data2000 pieces, 96 working curves, convenient for customers to use.

（5）Instrument standard configurationUSB interface, WIFI module, and Bluetooth module. Can achieve wireless Bluetooth printing; Can quickly manage spectral data for easy data processing; It can be exported directly through a USB flash drive, and the exported data can be opened and edited directly in EXCEL, making it convenient for customers to apply.

（6）Support fast scanning, fast wavelength movement speed, can achieve3000nm/min； Automatic wavelength setting, automatic light switching setting, connected to computer software, can achieve wavelength scanning, dynamic measurement, quantitative measurement, nucleic acid measurement, wavelength superposition, integral derivative, etcMultiple functions.

Technical Specifications

Shipping List