Differential conductimetry in flow injection. Determination of ammonia in Kjeldahl digests
نویسندگان
چکیده
منابع مشابه
Application of the phenol-hypochlorite reaction to measurement of ammonia concentrations in Kjeldahl digests of serum and various tissues.
Conditions have been defined that enable the use of nitroprusside as a catalyst for the phenol-hypochiorite reaction when the latter is applied to measurement of nitrogen in Kjeldahl digests containing mercury. This is accomplished by lowering the concentration of mercury to a range where it remains effective in accelerating the destruction of organic matter during digestion but no longer react...
متن کاملCoulometric Determination of Protein Nitrogen. Application to Direct Titration of Kjeldahl Digests.
A coulometric method is described for the determination of ammonia resulting from micro-Kjeldahl digestion of protein samples. The method has been applied to the direct titration of the ammonia in the digests. Routine titration of the ammonia resulting from lOsl. serum samples is described; the method has been applied to 1 -JLI. samples. Results are compared with standard macroand micro-Kjeldah...
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due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
15 صفحه اولFlow injection conductometric system with gas diffusion separation for the determination of Kjeldahl nitrogen in milk and chicken meat.
A simple flow injection (FI) conductometric system with gas diffusion separation was developed for the determination of Kjeldahl nitrogen (or proteins) in milk and chicken meat. The sample was digested according to the Kjeldahl standard method and the digest was diluted and directly injected into the donor stream consisting of 4M NaOH. In alkaline medium, ammonium was converted to ammonia, whic...
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ژورنال
عنوان ژورنال: The Analyst
سال: 1991
ISSN: 0003-2654,1364-5528
DOI: 10.1039/an9911600841