NANOCOLOR® Zinc Photometric determination of zinc Photometric determination with zincon At pH 10.5–11.5 zinc ions react with zincon to Read More »
Category Archives: ชุดทดสอบ Standard tests (NANOCOLOR® Standard tests)
ชุดทดสอบความขุ่น Standard Test (1 – 100 FAU)
NANOCOLOR® Turbidity (Formazine/DIN) Photometrische Bestimmung von Trübungen The turbidity of the pure sample is measured photometrically. NANOCOLOR® photometers are programmed with all necessary calibration date to express turbidity as the spectral absorbance coefficient 1/m or in internationally valid Formazine Attenuation Units (FAU) which are based on formazine standard suspensions. Read More »
ชุดทดสอบซัลไฟด์ Standard Test (0.1 – 3.0 mg/l S2-)
NANOCOLOR® Sulphide Photometric determination of sulphide Photometric determination as methylene blue. N,N-Dimethyl-1,4-phenylene diamine reacts with hydrogen sulphide to form a compound which changes to leucomethylene blue. Read More »
ชุดทดสอบซิลิกา Standard Test (0.1 – 10.0 mg/L SiO2)
NANOCOLOR® Silica Photometric determination of silica Photometric determination as silico-molybdenum blue. in acidic solution dissolved silica and silicates react with ammonium molybdate to form yellow silicomolybdic acid. Read More »
ชุดทดสอบฟอสเฟต Standard Test (1 – 17 mg/l PO4-P / 2 – 50 mg/l PO43-)
NANOCOLOR® ortho-Phosphate Photometric determination of ortho-phosphate Photometric determination of the yellow phosphate-molybdate-vanadate complex in acidic solution. ortho-phosphate ions react with molybdate/ vanadate to Read More »
ชุดทดสอบฟอสเฟต Standard Test (0,2 – 6,5 mg/l PO4-P / 0,5 – 20,0 mg/l PO43-)
NANOCOLOR® ortho-Phosphate Photometric determination of ortho-phosphate Photometric determination as molybdenum blue. Ammonium molybdate reacts with orthophosphate ions to form phosphomolybdic acid. Read More »
ชุดทดสอบฟีนอล Standard Test (0.1 – 7.0 mg/l Phenol)
NANOCOLOR® Phenol Photometric determination of phenol Photometric determination with diazotized 4-nitroaniline. Phenol reacts with diazotised 4-nitroaniline to form a red dye. The colour can fluctuate between yellow, brown and red with other phenols. Read More »
ชุดทดสอบไนไตรท์ Standard Test (0.01 – 0.30 mg/l NO2-N / 0.10 – 1.00 mg/l NO2-)
NANOCOLOR® Nitrite Photometric determination of nitrite Photometric determination with sulphanilic acid and 1-naphthylamine. In acidic solution sulphanilic acid is diazotised with nitrite. Read More »
ชุดทดสอบไนเตรท Standard Test (0.1 – 1.1 NO3-N / 0.5 – 5.0 mg/l NO3-)
NANOCOLOR® Nitrate Z Photometric determination of nitrate Photometric determination with sulphanilic acid and 1-naphthylamine after reduction to nitrite. First nitrate ions are reduced to form nitrite ions. Read More »
ชุดทดสอบไนเตรท Standard Test (0.9 – 30.0 mg/l NO3-N)
NANOCOLOR® Nitrat Photometric determination of nitrate Photometric determination with 2,6-dimethylphenol in sulphuric acid / phosphoric acid mixture. In acidic solution nitrate ions react with 2,6-dimethylphenol to Read More »
ชุดทดสอบนิเกิล Standard Test (0.1 – 10.0 mg/l Ni2+)
NANOCOLOR® Nickel Photometric determination of nickel Photometric determination with dimethylglyoxime. In alkaline solution nickel ions react with diacetyldioxime after oxidation to Read More »
ชุดทดสอบแมงกานีส Standard Test (0.1 – 10.0 mg/l Mn)
NANOCOLOR® Manganese Photometric determination of manganese Photometric determination of total manganese with formaldoxime. In alkaline solution manganese ions react with formaldoxime to Read More »
ชุดทดสอบตะกั่ว Standard Test (0.03 – 1.00 mg/L Pb2+)
NANOCOLOR® Lead Photometric determination of lead Photometric determination with dithizone. At pH 7 to 9 in the presence of cyanide lead(II) ions react with dithizone to form primary lead dithizonate, which is soluble in carbon tetrachloride Read More »
ชุดทดสอบเหล็ก Standard Test (0.1 – 15.0 mg/l Fe)
NANOCOLOR® Iron Photometric determination of iron Photometric determination with 1,10-phenanthroline. Iron(II) ions react with 1,10-phenanthroline to from an orange colour complex. Read More »
ชุดทดสอบไฮดราซีน Standard Test (0.01 – 1.50 mg/l N2H4)
NANOCOLOR® Hydrazine Photometric determination of hydrazine Photometric determination with 4-dimethylaminobenzaldehyde. In acidic solution hydrazine reacts with 4-dimethylaminobenzaldehyde to Read More »
ชุดทดสอบฟลูออไรด์ Standard Test (0.05 – 2.00 mg/l F-)
NANOCOLOR® Fluoride Photometric determination of fluoride Photometric determination of fluoride with 1,8-dihydroxy-2- (4-sulfophenylazo)naphthalene-3,6-disulfonic acid (SPADNS). Read More »
ชุดทดสอบDetergents, cationic Standard Test (0.2 – 5.0 mg/l CTAB)
NANOCOLOR® Detergents, cationic Photometric determination of cationic detergents Photometric determination with bromphenol-blue. Cationic detergents react with bromophenol blue to form a coloured complex, which is extracted with an organic phase. Read More »
ชุดทดสอบDetergents, anionic Standard Test (0.1 – 5.0 mg/l MBAS)
NANOCOLOR® Detergents, anionic Photometric determination of anionic detergents Photometric determination with methylene blue. Under suitable conditions anionic detergents react with methylene blue to form a coloured complex, which is extracted with an organic phase. Read More »
ชุดทดสอบไซยาไนด์ Standard Test (0.01 – 0.50 mg/l CN-)
NANOCOLOR® Cyanide Photometric determination of cyanide Photometric determination with barbituric acid/pyridine. Cyanide ions react with chloroamine T to form cyanogen chloride which, with a pyridine derivative and barbituric acid forms a polymethine dye. Read More »
ชุดทดสอบทองแดง Standard Test (0.1 – 10.0 mg/l Cu2+)
NANOCOLOR® Colour Photometric determination of colours Photometric determination with cuprizone (oxalic acid bis-cyclohexylidene hydrazide). In weakly alkaline solution copper(II) ions react with cuprizone [oxalic acid bis(cyclohexylidene hydrazide)] to Read More »
ชุดทดสอบสี Standard Test (5 – 500 mg/l Pt and 0.2 – 20 1/m)
NANOCOLOR® Colour Photometric determination of colours For determination of the colour intensity one uses the HAZEN scale, which is calibrated with platinum-cobalt chloride standards. In accordance with DIN EN ISO 7887-C1-3 the colouration is measured as spectral absorption coefficient at 3 wavelengths: ~436 nm, ~525 nm, ~620 nm. Read More »
ชุดทดสอบโคบอลท์ Standard Test (0.02 – 0.70 mg/l Co2+)
NANOCOLOR® Cobalt Photometric determination of cobalt At a pH > 5 cobalt(II) ions react with 4-[5-chloropyridyl-(2)-azo]-m-phenylene diamine (5-Cl-PADAB) to form a pink colour complex which, contrary to other heavy metal complexes, Read More »