Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

PH meter types

Figure 18.3—Principle of ISE measurement of fluoride ions in solution using a double junction reference electrode. The reference electrode is inserted into a separate chamber that contains the auxiliary electrolyte in order to avoid osmosis of KC1 into the sample solution. Also, 1 M KN03 can be used for F , Cl, CN or Ag+ determination. The measurement involves the use of a high impedance millivoltmeter (pH meter type). A version of an all-solid fluoride electrode is shown on the right. Figure 18.3—Principle of ISE measurement of fluoride ions in solution using a double junction reference electrode. The reference electrode is inserted into a separate chamber that contains the auxiliary electrolyte in order to avoid osmosis of KC1 into the sample solution. Also, 1 M KN03 can be used for F , Cl, CN or Ag+ determination. The measurement involves the use of a high impedance millivoltmeter (pH meter type). A version of an all-solid fluoride electrode is shown on the right.
Apparatus. pH-meter, type E-396 Metrohm. For determination, the procedure reported by Fieser (5) was followed. [Pg.188]

Furthermore, pH-values were measured by a pH-meter (type CG 818, Schott Equipment, Hofheim, Germany). The measurements were taken from a total of 6 different viscoelastic vials per product, which were supplied, mostly free of charge, by the participating companies for the purpose of this trial. [Pg.37]

See other pages where PH meter types is mentioned: [Pg.610]    [Pg.155]   
See also in sourсe #XX -- [ Pg.32 ]



SEARCH



© 2024 chempedia.info