022-29398436
WTF 6000l multi parameter water quality analyzer
Agriculture, forestry, animal husbandry and fishery, industrial and mining enterprises, municipal engineering,hydrology
and water conservancy, scientific research institutions, real estate and construction industry, etc
WTF 6000l multi parameter water quality analyzer
Choosing the right monitoring and analysis method is an important feature to obtain accurate results. The selection of analytical methods should follow the following principles: sensitivity and accuracy can meet the quantitative requirements; The method is mature; The anti-jamming ability is good; It is easy to operate and popularize. According to the above principles, in order to make the monitoring data comparable, the international organization for Standardization (ISO) and various countries have developed corresponding standardized analysis methods for different pollutants in various types of water bodies on the basis of a large number of practices. In China, by the end of June 2005, 141 standards of water quality analysis methods were issued by the State Environmental Protection Bureau, accounting for about 35% of the total national standards of water environment.
Choosing the right monitoring and analysis method is an important feature to obtain accurate results. The selection of analytical methods should follow the following principles: sensitivity and accuracy can meet the quantitative requirements; The method is mature; The anti-jamming ability is good; It is easy to operate and popularize. According to the above principles, in order to make the monitoring data comparable, the international organization for Standardization (ISO) and various countries have developed corresponding standardized analysis methods for different pollutants in various types of water bodies on the basis of a large number of practices. In China, by the end of June 2005, 141 standards of water quality analysis methods were issued by the State Environmental Protection Bureau, accounting for about 35% of the total national standards of water environment.
Analysis methods: spectrophotometry, anodic dissolution, potentiometric titration, luminescent bacteria method
Automatic cleaning, automatic calibration and automatic verification
►Surface water monitoring items
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Selected test items |
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rivers |
Water temperature, pH, dissolved oxygen, permanganate index, five-day biochemical oxygen demand, ammonia nitrogen, total nitrogen, total phosphorus, copper, zinc, fluoride, selenium, arsenic, mercury, cadmium, chromium (hexavalent), lead, cyanide, volatile phenol, petroleum, anionic surfactant, sulfide and fecal coliform |
Total organic carbon, methylmercury, etc |
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Centralized drinking water source |
Water temperature, pH, dissolved oxygen, suspended solids, permanganate index, chemical oxygen demand, BOD5, ammonia nitrogen, total nitrogen, total phosphorus, copper, zinc, fluoride, iron, manganese, selenium, arsenic, mercury, cadmium, chromium (hexavalent), lead, cyanide, volatile phenol, petroleum, anionic surfactant, sulfide, sulfate, chloride, nitrate and fecal coliform |
Chloroform, carbon tetrachloride, tribromomethane, dichloromethane, 1,2-dichloroethane, epichlorohydrin, vinyl chloride, 1,1-dichloroethylene, 1,2-dichloroethylene, trichloroethylene, tetrachloroethylene, chloroprene, hexachloroprene, styrene, formaldehyde, acetaldehyde, acrolein, Trichloroacetaldehyde, benzene, toluene, ethylbenzene, xylene, cumene, chlorobenzene, 1,2-dichlorobenzene1,4-dichlorobenzene, Trichlorobenzene (4), Tetrachlorobenzene (5), hexachlorobenzene, nitrobenzene, dinitrobenzene (6), 2,4-dinitrotoluene, 2,4,6-trinitrotoluene, nitrochlorobenzene (7), 2,4-dinitrochlorobenzene, 2,4-dichlorophenol, 2,4,6-trichlorophenol, pentachlorophenol, aniline, benzidine, acrylamide, acrylonitrile, dibutyl phthalateDi (2-ethylhexyl) phthalate, hydrazine hydrate, tetraethyl lead, pyridine, turpentine, picric acid, butyl xanthic acid, active chlorine, DDT, lindane, heptachlor epoxide, parathion, methyl parathion, malathion, dimethoate, dichlorvos, trichlorfon, endophos, chlorothalonil, carbaryl, deltamethrin, atrazine, benzo (a) pyrene, methylmercuryPCBs, microcystins LR, yellow phosphorus, molybdenum, cobalt, beryllium, boron, antimony, nickel, barium, vanadium, titanium and thallium |
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Lakes and reservoirs |
Water temperature, pH, dissolved oxygen, permanganate index, five-day biochemical oxygen demand, ammonia nitrogen, total nitrogen, total phosphorus, copper, zinc, fluoride, selenium, arsenic, mercury, cadmium, chromium (hexavalent), lead, cyanide, volatile phenol, petroleum, anionic surfactant, sulfide and fecal coliform |
Total organic carbon, methylmercury, nitrate, etc |
① According to the surface water quality standard (GB3838-2002), the monitoring frequency can be reduced when the monitoring results of some monitoring items are lower than the detection limit and no new pollution sources are confirmed.According to the different economic development in different regions, the selected measurement items should be monitored once a year in the areas with monitoring capacity (equipped with GC / MS).② When the suspended matter is below 5mg / L, the turbidity is determined.③ Xylene refers to o-xylene and p-xylene.④ Trichlorobenzene refers to 1,2,3-trichlorobenzene, 1,2,4-trichlorobenzene and 1,3,5-trichlorobenzene.⑤ Tetrachlorobenzene refers to 1,2,3,4-tetrachlorobenzene, 1,2,3,5-tetrachlorobenzene and 1,2,4,5-tetrachlorobenzene.⑥ Dinitrobenzene refers to o-dinitrobenzene, m-dinitrobenzene and p-dinitrobenzene.⑦ Nitrochlorobenzene refers to o-nitrochlorobenzene, m-nitrochlorobenzene and p-nitrochlorobenzene.⑧ PCBs refer to pcb-1016, pcb-1221, pcb-1242, pcb-1248, pcb-1251 and pcb-1260.
► Industrial wastewater monitoring project
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category |
Required items |
Selected test items |
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Ferrous metal mines (including phosphorite, hematite, manganese ore, etc.) |
Suspended solids, pH, heavy metals* |
sulfide |
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Ferrous metallurgy (including beneficiation, sintering, coking, steelmaking, ironmaking, steel rolling, etc.) |
Suspended matter cod, volatile phenol, cyanide and heavy metals |
Petroleum, sulfide, fluoride |
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Mineral processing reagent |
Cod, suspended solids, sulfide and heavy metals |
xanthate |
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Nonferrous metal mining and smelting (including beneficiation, sintering, electrolysis, refining, etc.) |
PH, COD, suspended solids, cyanide, heavy metals |
Sulfide, beryllium |
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Thermal power generation |
PH, suspended solids |
Petroleum and sulfide |
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Coal mine (including coal washing) |
PH, suspended solids, sulfide |
Arsenic, petroleum |
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coking |
Cod, volatile phenol, cyanide, petroleum, suspended solids |
B (a) P, ammonia nitrogen |
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Oil exploitation |
Petroleum, COD, suspended solids and sulfide |
Volatile phenol and total chromium |
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Petroleum refining |
Petroleum, COD, suspended matter, volatile phenol and sulfide |
Benzene series, B (a) P |
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Chemical mining |
Pyrite |
PH, sulfide, suspended solids, heavy metals, arsenic |
Sulfide, arsenic |
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Phosphate rock |
Phosphate (P), pH, fluoride, suspended solids |
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Mercury ore |
Mercury, pH, suspended solids |
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Inorganic materials |
sulphuric acid |
PH, sulfide, heavy metals, suspended solids |
Arsenic, mercury fluoride |
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chlor-alkali |
PH, COD, suspended solids |
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Chromate |
PH, hexavalent chromium, total chromium, suspended solids |
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Organic materials |
Cod, volatile phenol, cyanide and suspended solids |
Benzene series, nitrobenzene, organochlorine, etc |
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Plastic |
Cod, petroleum, sulfide and suspended solids |
Benzene series, B (a) P, fluoride, cyanide |
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chemical fiber |
Cod, pH, suspended solids, petroleum, chroma |
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rubber |
Cod, petroleum, sulfide, hexavalent chromium |
BTEX, B (a) P, heavy metal |
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pharmacy |
Cod, petroleum, suspended matter and volatile phenol |
Aniline, nitrobenzene |
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dyestuff |
Cod, aniline, volatile phenol, chroma, suspended solids |
Nitrobenzene, sulfide, TOC |
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Pigment |
Cod, sulfide, suspended solids, mercury, hexavalent chromium |
Chroma, heavy metal |
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Synthetic detergent |
Cod, anionic synthetic detergent, petroleum |
Benzene series, animal and vegetable oil, phosphate |
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chemical fertilizer |
phosphate fertilizer |
Cod, phosphate, pH, suspended matter, fluoride |
Phosphorus and arsenic |
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nitrogenous fertilizer |
Cod, ammonia nitrogen, volatile phenol and suspended solids |
Arsenic, copper, cyanide |
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pesticides |
Organophosphorus |
Cod, volatile phenol, sulfide and suspended solids |
Organic phosphorus, phosphorus |
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Organochlorine |
Cod, suspended solids, sulfide and volatile phenol |
Organochlorine |
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electroplate |
PH, heavy metals, cyanide |
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Machinery manufacturing |
Cod, petroleum, heavy metals, suspended solids |
cyanide |
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Electronic instrument |
PH, COD, cyanide, heavy metals |
fluoride |
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papermaking |
Cod, pH, volatile phenol and suspended solids |
Chroma, sulfide |
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Textile, printing and dyeing |
Cod, suspended solids, pH, chroma |
Sulfide, hexavalent chromium |
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Leatherwear |
Cod, pH, sulfide, suspended solids and total chromium |
Animal and vegetable oils, hexavalent chromium |
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cement |
PH, suspended solids |
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food |
Cod, pH, suspended solids |
Ammonia nitrogen, nitrate nitrogen, animal and vegetable oil, BOD5 |
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Pyrotechnics |
Cod, nitrobenzene, sulfide, heavy metal |
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Battery |
PH, heavy metals, suspended solids |
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Insulating material |
PH, COD, volatile phenol and suspended solids |
formaldehyde |
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domestic sewage |
PH, COD, BOD5, suspended solids, oil, volatile phenol, ammonia nitrogen, total nitrogen, total phosphorus, heavy metals * |
chloride |
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Hospital Wastewater |
PH, COD, BOD5, suspended solids, oil, volatile phenol, total nitrogen, total phosphorus, mercury, fecal coliform, total bacterial count |
Fluoride, chloride, aldehydes, total organic carbon |
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* heavy metals include Hg, Cr, Cr (VI), Cu, Pb, Zn, CD and Ni, and the specific monitoring indicators shall be determined by the administrative department of environmental protection at or above the county level.
►Water quality monitoring and analysis methods
Choosing the right monitoring and analysis method is an important feature to obtain accurate results.The selection of analytical methods should follow the following principles: sensitivity and accuracy can meet the quantitative requirements;The method is mature;The anti-jamming ability is good;It is easy to operate and popularize.According to the above principles, in order to make the monitoring data comparable, the international organization for Standardization (ISO) and various countries have developed corresponding standardized analysis methods for different pollutants in various types of water bodies on the basis of a large number of practices.In China, by the end of June 2005, 141 standards of water quality analysis methods were issued by the State Environmental Protection Bureau, accounting for about 35% of the total national standards of water environment.There are three levels of water quality monitoring and analysis methods, which complement each other and form a complete monitoring and analysis method system.More than 140 standard analytical methods including sampling have been developed in China, which are classic and accurate. They are the legal arbitration method for environmental pollution disputes, the basis for environmental law enforcement, and the benchmark method for evaluating other analytical methods.The research and experimental verification of many units show that it is a mature method, which can accumulate experience in use and improve continuously, and lay the foundation for rising to the national standard method.The sensitivity, accuracy and precision of the method are comparable with those of the methods (I) and (II).This kind of method has been studied and applied in a few domestic units, or directly introduced from developed countries. New technologies and new methods are mostly used, and can be used in qualified units first, so as to promote the progress of monitoring technology.Conventional analysis and testing methods include chemical analysis and instrumental analysis. At present, the monitoring items in water quality monitoring have the trend of instrumentation and automation, and the commonly used monitoring methods（1） Analysis method of national water quality standard（2） Unified analysis method（3） Equivalent method
► Common water quality monitoring methods
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Method name |
Monitoring items |
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Gravimetric method |
SS, filterable residue, salinity, oil, SO42 -, Cl -, Ca2 + etc |
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Volumetric method |
Acidity, alkalinity, CO2, dissolved oxygen, total hardness, Ca2 +, Mg2 +, ammonia nitrogen, Cl -, F -, CN -, SO42 -, S2 -, Cl2, COD, BOD5, volatile phenol, etc |
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Spectrophotometric method |
AG, Al, as, be, Bi, Ba, CD, Co, Cr, Cu, Hg, Mn, Ni, Pb, Sb, Se, th, u, Zn, ammonia nitrogen, NO2 -, - N, NO3 -, N, Kjeldahl nitrogen, PO43 -, F -, Cl -, C, S2 -, SO42 -, bo32 -, sio32 -, Cl2, volatile phenol, formaldehyde, Trichloroacetaldehyde, aniline, nitrobenzene, anionic detergent, etc |
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Fluorescence spectrophotometry |
Se, be, u, oil, BAP, etc |
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Atomic absorption spectrometry |
AG, Al, Ba, be, Bi, CA, CD, Co, Cr, Cu, Fe, Hg, K, Na, Mg, Mn, Ni, Pb, Sb, Se, Sn, Te, Tl, Zn, etc |
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Hydride generation and cold atomic absorption spectrometry |
As、Sb、Bi、Ge、Sn、Pb、Se、Te、Hg |
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Atomic Fluorescence Spectrometry |
As, Sb, Bi, Se, Hg, etc |
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Flame photometry |
Li, Na, K, Sr, Ba, etc |
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Electrode method |
Eh, pH, do, F -, Cl -, CN -, S2 -, NO3 -, K +, Na +, NH3, etc |
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Ion chromatography |
F -, Cl -, Br -, NO2 -, NO3 -, SO32 -, SO42 -, H2PO4 -, K +, Na +, NH4 +, etc |
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Gas chromatography |
Be, Se, BTEX, VOCs, chlorobenzene, BHC, DDT, organophosphorus pesticides, Trichloroacetaldehyde, nitrobenzene, PCB, etc |
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High performance liquid chromatography |
Polycyclic aromatic hydrocarbons, phenols, anilines, phthalates, atrazine, etc |
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ICP-AES |
K. Na, CA, Mg, Ba, be, Pb, Zn, Ni, CD, Co, Fe, Cr, Mn, V, Al, as, etc |
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Gas molecular absorption spectrometry |
NO2 -, NO3 -, ammonia nitrogen, Kjeldahl nitrogen, total nitrogen, S2 - |
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Gas chromatography mass spectrometry |
Volatile organic compounds, semi volatile organic compounds, benzenes, dichlorophenols and pentachlorophenols, phthalates and adipates, organochlorine pesticides, polycyclic aromatic hydrocarbons, dioxins, polychlorinated biphenyls, organotin compounds |
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Biological monitoring method |
Plankton, epiphytes, zoobenthos, fish biology survey, primary productivity, total bacterial count, total coliform, fecal coliform, Salmonella, Streptococcus faecalis, biotoxicity test, Ames test, sister chromosome exchange (SCE) test, plant micronucleus test |
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