VISOCOLOR® ECO Swimming pool
游泳池PH/氯水質(zhì)測試劑/德國MN931090/931290
Colorimetric determination of chlorine and pH-value
Free chlorine reacts with N,N-diethyl-1,4-phenylene diamine (DPD) to form a red-violet dye. The pH value is determine…
VISOCOLOR® ECO Swimming pool
游泳池PH/氯水質(zhì)測試劑/德國MN931090/931290
Colorimetric determination of chlorine and pH-value
Free chlorine reacts with N,N-diethyl-1,4-phenylene diamine (DPD) to form a red-violet dye. The pH value is determine…
VISOCOLOR® ECO Oxygen
德國MN氧化物測試劑/補充試劑931088/931288
Colorimetric determination of oxygen
Oxygen determination according to Winkler: in alkaline solution dissolved oxygen oxidises manganese(II) ions to higher-valent manganese hydro…
VISOCOLOR® ECO Fluoride
德國MN氟化物測試劑Fluoride/931227
Photometric determination of fluoride
Photometric determination of fluoride with 1,8-dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic acid (SPADNS) with the photometer PF-…
VISOCOLOR® ECO Chloride
德國MN氯化物測試劑/補充試劑931018/931218
Colorimetric determination of chloride
Chloride ions react with mercuric thiocyanate to produce undissociated mercuric chloride and to liberate thiocyanate ions. In the presenc…
VISOCOLOR® ECO Sulphite
德國MN亞硫酸鹽測試劑Sulphite/滴定法931095
Titrimetric determination of Sulphite
Titrimetric determination with addition of iodine solution and reverse titration of unused iodine with sodium thiosulphate.
…
VISOCOLOR® ECO Nitrite
德國MN亞硝酸測試劑/補充試劑931044/931244
Colorimetric determination of nitrite
In acidic solution sulphanilic acid or sulphanilamide are diazotised with nitrite. The diazonium salt is then coupled with an aromatic amin…
VISOCOLOR® ECO DEHA
德國MN DEHA測試劑/補充試劑931024/931224
Colorimetric determination of DEHA
Measurement of the reduction properties of DEHA for iron(III) ions and determination of the iron(II) ions formed.
…
VISOCOLOR® ECO Carbonate hardness
德國MN碳酸鹽硬度測試劑931014
Titrimetric determination of carbonate hardness
The determination is preformed as titration with hydrochloric acid against a mixed indicator, which changes colour at pH 4.5. (R…
VISOCOLOR® ECO Sulphide
德國MN硫化物測試劑/補充試劑931094/931294
Colorimetric determination of Sulphide
N,N-Dimethyl-1,4-phenylene diamine reacts with hydrogen sulphide to form an unstable compound which rearranges to leucomethylene blue. Ox…
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