VISOCOLOR® HE
VISOCOLOR® HE test kits are highly sensitive colorimetric test kits. In comparison with conventional VISOCOLOR® kits, their sensitivity is enhanced by increasing the length of the test tube and the use of highly sensitive reagents. This technique allows a 10-fold to 100-fold increase of sensitivity. Each VISOCOL…
VISOCOLOR® ECO Potassium
德國(guó)MN鉀測(cè)試劑/補(bǔ)充試劑931032/931232
Determination of potassium as turbidity measurement
Potassium reacts with sodium tetraphenylborate to form a precipitate. Under defined conditions this turbidity can be used for…
VISOCOLOR® ECO Iron 1
德國(guó)MN鐵測(cè)試劑/補(bǔ)充試劑931025/931225
Colorimetric determination of iron
Triazine method: iron(II) ions react with a triazine derivative to form a violet complex. Iron(III) ions are reduced and thus also determined.
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VISOCOLOR® ECO Chromium
德國(guó)MN鉻測(cè)試劑/補(bǔ)充試劑931020/931220
Colorimetric determination of chromium (VI)
In sulphuric acid chromate ions react with diphenylcarbazide to form a red-violet dye. (Reaction basis according to DIN EN ISO 7393 G4…
VISOCOLOR® ECO Phosphate
德國(guó)MN磷酸鹽測(cè)試劑/補(bǔ)充試劑931084/931284
Colorimetric determination of phosphate
Ammonium molybdate reacts with phosphate ions to form phosphomolybdic acid which is reduced to molybdenum blue (Reaction basis accordin…
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…