SU95772A1 - Method for determination of small amounts of divalent manganese - Google Patents

Description

Methods are known for the determination of divalent manganese by: the redox reaction, the naphimer with phyldohaloxo and o. However, at the same time, it is required to make iron separation once a quarter.

The proposed method shortens the analysis time, as it allows the determination of small amounts of two-bv argans in the presence of small amounts of iron and differs from those known in that the definition is produced by reaction with calcium cyanalorto-aminophenol.

The method is as follows.

Ammonium chloride containing 0.05% alcoholic solution of azomethine obtained by condensation of salicylic aldehyde with ortho-aminophenol is added to the test solution with pH 9.7-11.6, and the color of the test solution is compared after adding the formal: other (for color stabilization) with the color of standard solutions. The opening minimum is 0.25 7 {T 0.001 mg) of manganese in 5 ml of solution, which corresponds to a precursor. Having said 1: 2. 10h

PR 11 mep -1. Definition: 1: cation of Mp in the presence of other cations.

In pacTBOj), the content is from 0.25 to BuMn, 1 ml of a 1 () solution of .x, low ammonium hydroxide and o6iieM water is added to 5 M.I. 0.1 -1.0.05 is added to the solution | alcoholic jiacTBOpa salicyl .1-ortho-am1 nophenol (azomethine) p iiocie mixing 0.2 m g 2 () of a caustic solution of sodium (1) a. According to the color of the coloration, as a result of the interaction of the Mp cation with azomethine, occurs at j) H of the medium in a1.1.1 from 9.7 to 11.6 with the same intensity; In the pH range of 9-9.2, the resulting color is somewhat paler; at pH, paBHoii 6–7, there is no longer a change in LC.1 TO color of the reagent. The color arises, and with a favorable pH value from the presence of manganese, it develops with time (at room temperature) and after 10 minutes. reaches its highest, proportional to the amount of manganese, intensity, which in these conditions can

RazE5ig; L1 with ii Ati.iee. For the fore}.: The iroro further development of color, which can already reach intensity, does not correspond to Vx Hie ii and xxh and a ratio of 11) e divisible marg ng (a, 9-10 min from the beginning of the development of oKiKiCKH 0.5 ml -1 () (1st formalin solution is added to the liquid divided by solution1). After this, the color of the solution to be treated is compared to ca. standard1P) 1. solutions.

Г1 j) и ме J) 2. Alredele rah Mn in the preutuetvia of the cation of Fe.

Ana neutralized neutral solution containing 0.25–0.5 g of salts of n.1 acid. meta.tl-0,5; - 8 7 Mp and about 50 yr of Ryo, nomen; a1OT into a test tube of colorless glass, adding 1 ml of 10 ii-Hoio solution of x.hour ammonium solution, 0.5 ml of 10% solution of ferocaine salt, and add water to 5 ml. Simultaneously, standard solutions are prepared, for which purpose, respectively, 0.57, 1y are introduced into the same tubes. - {, H :, and 87 Mp but 1 ml of chloro-istocch ammonium solution, 0.5 ml of segnetova salt each, and we put it in all bottles to 5 ml. To the solution, to the solution, four channels of a 0.05% solution of the reagent were added to the reference solutions and, but unreacted, but 0.15 ml of 20: p-noro caustic soda solution. After 9-10 min. If possible, at the same time, in the weight of the solution, 0.3 ml of 40: i-leg () formalin solution is added. ;

Under the conditions proposed, manganese can be determined.

in sulphate solutions,

nitrous oxide and potassium chloride salts, and ammonium.

In nadsernokis.1kh so.t x

single-metal metals determination of manganese is possible

Hoc.ie not) evoda them in erythrocyte.

PREDAM OF ABOUT THIS

The method of determining small amounts of bivalent manganese by means of opioid. Restoratively reducing reactions, characterized in that, with the purpose of conducting an analysis in the presence of small amounts of iron, it is necessary to carry out an analysis of the body. ortho-a.minofen.1.