990UV
990UV
+
  • 990UV
  • 990UV

UV multi parameter water quality analyzer


The wavelength range of GNST-990UV visible spectrophotometer is 190-1100nm, and the spectral bandwidths of P5 and P6 are 2nm and 1nm respectively. This series of instruments fully meets the needs of different occasions such as scientific research, laboratory analysis, and on-site detection. The instrument is equipped with an industrial control computer and analysis software based on Microsoft Windows operating system. It has a complete measurement application module, data management module, user management module, and system management module.

Product Features


Photometric measurement:measuring the absorbance, transmittance, or reflectance of a sample
Multi wavelength measurement:measuring the photometric value of a sample. Supports up to 20 wavelengths of photometric values for a single measurement; Support custom calculation methods for photometric values
Dynamics:Measure the absorbance value (or rate of change of absorbance value) of the sample over time and plot the rate of change curve; Coordinate adaptation; Support automatic saving and printing. Time scan: measure the photometric value of the sample and plot the change curve over time; Coordinate adaptation; The photometric mode can be converted; Support automatic saving and printing
Quantitative measurement:measuring the concentration value of a sample. Single wavelength, dual wavelength, triple wavelength, and multi wavelength measurements; Directly input equation coefficients
Two component quantitative measurement:simultaneously measure the concentration values of a mixed solution containing two samples, and directly input the equation coefficients
Biological method measurement (nucleic acid/protein measurement):measuring the concentration value of biological samples. Built in 7 commonly used nucleic acid/protein measurement methods
Spectral scanning:measuring the absorption spectrum of a sample. Scan intervals can be selected (0.1, 0.2, 0.5, 1, 2, 5 nm); Scanning speed options (low, medium, high); Automatically search for peaks

Product parameters


 

nameparameter
Testing itemsCODAmmonia nitrogenTotal phosphorusTotal nitrogen
Detection range0-20000mg/L0-125mg/L0-20mg/L0-100mg/L
Testing standardsHJ/T399-2007HJ/535-2009GB/11893-89HJ/T 102-2003
Detection principlePotassium dichromate methodNessler's reagent methodAmmonium molybdate methodAlkaline persulfate digestion photometric method
Detection lower limit5mg/L0.03mg/L0.02mg/L0.2mg/L
optical systemProportional dual beam, 1200 l/mm grating
light sourceTungsten lamp, deuterium lamp
receiversilicon photocell
Spectral bandwidth2 nm
stability<0.0005 A/h @ 500 nm (after preheating for 2 hours)
baseline flatness±0.001A
Sample rack10mm standard quadruple rack
display10.1-inch color touch screen (resolution: 1280 * 800)
storage64GB (SSD), supports external expansion (USB storage, Micro SD card)
InterfaceHDMIx1, USB Ax1 (USB device), USB-Bx1 (computer), WIFI, Bluetooth
Power Supply100~240 VAC,50~60 Hz,140 W
weight11 kg

Other test items


Project

Range

Test method 

COD

0-20000mg/L

Potassium dichromate spectrophotometric method

Total phosphorus

0-20mg/L

Ammonium molybdate spectrophotometric method

Suspended solids

0-400mg/L

Direct colorimetric method

chroma

0-500 degrees

Platinum cobalt color system

copper

0-100mg/L

2,9-dimethyl-1,10-phenanthroline spectrophotometric method

Hexavalent chromium

0-20mg/L

Diphenylcarbazide spectrophotometric method

iron

0-100mg/L

Phenanthroline spectrophotometric method

manganese

0.5-200mg/L

Potassium periodate spectrophotometric method

ferrous

0-100mg/L

Phenanthroline spectrophotometric method

sulfate

5-500mg/L

Ammonium molybdate spectrophotometric method

Residual chlorine

0-20mg/L

N. N-diethyl-1,4-phenylenediamine spectrophotometric method

cyanide

0-10mg/L

Capacity method and spectrophotometric method

Nitrate nitrogen

0-100mg/L

Color changing acid method

chloride

0-100mg/L

Mercury thiocyanate spectrophotometric method

fluoride

0-20mg/L

Fluorine reagent spectrophotometric method

Permanganate index

0.5-5mg/L

Potassium permanganate oxidation spectrophotometric method

Ammonia nitrogen

0-25mg/L

Salicylic acid spectrophotometric method

Total hardness

4-600mg/L

EDTA titration method

Total alkalinity

4-2000mg/L

Hydrochloric acid titration method

ozone

0-20mg/L

DPD spectrophotometric method

silicon dioxide

0-500mg/L

Silicon molybdenum yellow spectrophotometric method

urea

0-20mg/L

Diacetyl oxime spectrophotometric method

Volatile fatty acids

0-5000mg/L

colorimetry

Ammonia nitrogen (seawater)

0-5mg/L

Sodium hypobromite oxidation method

COD (high chlorine)

200-1500mg/L

Potassium dichromate spectrophotometric method

Ammonia nitrogen

0-125mg/L

Nessler's reagent method

Total nitrogen

0-100mg/L

Alkaline potassium persulfate digestion spectrophotometry

turbidity

0-500NTU

Fulmazhen spectrophotometric method

nickel

0-50mg/L

Dimethylglyoxime spectrophotometric method 

Total chromium

0-20mg/L

Diphenylcarbazide spectrophotometric method

zinc

0-20mg/L

PAN spectrophotometric method

cadmium

0-10mg/L

Cadmium reagent spectrophotometric method

lead

0-50mg/L

Xylenol Orange spectrophotometric method

Nitrite nitrogen

0-10mg/L

Nitrite nitrogen

Total residual chlorine

0-20mg/L

N. N-diethyl-1,4-phenylenediamine spectrophotometric method

sulfide

0-10mg/L

Methylene blue spectrophotometric method

phosphate

0-20mg/L

Ammonium molybdate spectrophotometric method

Volatile phenol

0-50mg/L

4-aminoantipyrine spectrophotometric method

aniline 

0-50mg/L

N - (1-naphthyl) ethylenediamine azo spectrophotometric method

Anionic surfactant

0-20mg/L

Methylene blue spectrophotometric method

aluminium

0-5mg/L

Chromazurol S spectrophotometric method

silver

0-10mg/L

3,5-Br2-PADAP spectrophotometric method

formaldehyde

0-50mg/L

Acetylacetone spectrophotometric method

chlorine dioxide

0-40mg/L

DPD spectrophotometric method

Cyanuric acid

5-250mg/L

Turbidity method

Phenolphthalein alkalinity

4-2000mg/L

Methyl Red Titration Method

Soft water hardness

0.4-20mg/L

EDTA titration 

cobalt

0-10mg/L

5-Chloro-2- (Pyridylazo) -1

Keywords:

990UV

990UV
990UV
+
  • 990UV
  • 990UV

990UV

The instrument is equipped with an industrial control computer and analysis software based on Microsoft Windows operating system. It has a complete measurement application module, data management module, user management module, and system management module.


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