VISOCOLOR® ECO Hydrazine
德國(guó)MN肼測(cè)試劑/補(bǔ)充試劑931030/931230
Colorimetric determination of Hydrazine
DIN method: In acidic solution hydrazine reacts with 4-dimethylaminobenzaldehyde to form a yellow/orange coloured compound.
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VISOCOLOR® ECO Chlorine dioxide
德國(guó)MN二氧化氯測(cè)試劑/補(bǔ)充試劑931021/931221
Colorimetric determination of chlorine dioxide in drinking water, reservoirs and disinfectant solutions
At a pH value of 5-6 chlorine dioxide reacts with N,N-diethyl-1…
VISOCOLOR® ECO Zinc
德國(guó)MN鋅測(cè)試劑/補(bǔ)充試劑931098/931298
Colorimetric determination of zinc
At a pH of 8.5 – 9.5 zinc ions react with zincon to form a blue colour complex. Acidic, alkaline and buffered samples have to be adjusted to …
VISOCOLOR® ECO Hardness (total)
德國(guó)MN總硬度測(cè)試劑hardness/931029/931929
Titrimetric determination of total hardness
Complexometric titration in accordance with DIN 38406 E3 and DIN 38409 H6.
Copper(II) ions can delay or (in…
VISOCOLOR® ECO Chlorine 6, free + total
德國(guó)Mn總氯/自由氯測(cè)試劑931217
Photometric determination of free and total chlorine
At a pH value of 5 - 6 free chlorine reacts with N,N-diethyl-1,4-phenylene diamine (DPD) to form a red-violet dye. I…
VISOCOLOR® ECO Swimming pool
游泳池PH/氯水質(zhì)測(cè)試劑/德國(guó)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(cè)試劑/德國(guó)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(guó)MN氧化物測(cè)試劑/補(bǔ)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(guó)MN氟化物測(cè)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(guó)MN氯化物測(cè)試劑/補(bǔ)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…