Analysis of Technical Parameters of ZDDN-II Automatic Nitrogen Determinator

Analysis of Technical Parameters of ZDDN-II Automatic Nitrogen Determinator

Kjeldahl is an instrument that can determine the amount of nitrogen in a substance. The nitrogen content is related to the protein content, so another function of Kjeldahl is to be able to determine the amount of protein in a substance. What happened to the Sanlu milk powder incident that year? That's because milk powder contains melamine. Like melamine, melamine also contains nitrogen, which makes some businesses opportunistic. It adds melamine, a poisonous substance to milk powder, giving people an illusion that the milk powder contains a lot of protein. .

ZDDN-II automatic nitrogen determination instrument mainly determines the nitrogen content in seeds, grain, food, dairy products, beverages, feed, soil and other agricultural and sideline products. The nitrogen determination instrument is divided into different models, mainly including the KDN series nitrogen determination instrument and the automatic nitrogen determination instrument series. Specific examples include the KDN-04A automatic nitrogen determination instrument, the KDN-04C automatic nitrogen determination instrument, and the KDN-08A automatic nitrogen determination instrument. Instrument, KDN-08C automatic nitrogen determination instrument, KDN-12C automatic nitrogen determination instrument, KDN-20C automatic nitrogen determination instrument and ZDDN-II automatic nitrogen determination instrument; according to the number of holes in the digestion furnace, it can be divided into 4 holes, 8 Holes, 12 and 20 holes.

Below we list the technical parameters of the ZDDN-II automatic nitrogen determination instrument.

name

parameter

equipment name

ZDDN-II automatic nitrogen determination instrument

Measuring variety

Food, food, dairy products, beverages, feed, soil, water, medicines, sediments and chemicals;

Way of working

Automatic (without titration)

Sample volume

Solid 5g/sample; Liquid 15ml/sample

Measurement range

0.1mgN ~ 200mgN (mg nitrogen) (nitrogen content 0.02% ~ 95%)

Cooling water consumption

2L/minute

Repetition rate

Relative standard deviation <±1%

Recovery rate

100±1% (Relative error, including digestion process)

Water supply

Water pressure greater than 0.15MPa; water temperature less than 20 degrees