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BSI PD CEN/TS 17770:2022

BSI PD CEN/TS 17770:2022

$102.76

Organic and organo-mineral fertilizers. Determination of the total content of specific elements by ICP-AES after digestion by aqua regia

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BSI 2022 16
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This document specifies a method for the determination of elements in organic fertilizers and organo-mineral fertilizers digests using inductively coupled plasma-atomic emission spectrometry (ICP-AES). NOTE Alternatively, inductively coupled plasma mass spectrometry (ICP-MS) can be used for the measurement if the user proves that the method gives the same results. This method is applicable to aqua regia digests prepared according to CEN/TS 17768 for the determination of P, K, Ca, Mg, Na, S, B, Co, Cu, Fe, Mn, Mo, Zn, As, Cd, Cr, Ni, Pb by ICP-AES. The method can be used for the determination of other elements, provided the user has verified the applicability.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
5.1 General
5.2 Spectral interferences
8 5.3 Transport interferences
5.4 Excitation interferences
5.5 Chemical interferences
5.6 Memory interferences
6 Reagents
6.1 General
6.2 Nitric acid, substance concentration c(HNO3) ≈ 14,3 mol/l; mass concentration ρ ≈ 1,4 g/ml.
6.2.1 Diluted nitric acid solution, c(HNO3) = 5 mol/l.
9 6.3 Hydrochloric acid, c(HCl) ≈ 12 mol/l; ρ ≈ 1,18 g/ml.
6.4 Mixed acid solution, 0,8 mol/l nitric acid and 1,8 mol/l hydrochloric acid.
6.5 Standard stock solutions, concentration of 1 000 mg/l for each element.
6.5.1 General
6.5.2 Standard solution, concentration of 100 mg/l of element.
6.5.3 Standard solution, concentration of 10 mg/l of element.
6.6 Argon, purity 99,995 % or better.
7 Apparatus
7.1 Common laboratory glassware.
7.2 Inductively coupled plasma atomic emission spectrometer.
10 8 Procedure
8.1 Preparation of test and blank solution
8.2 Preparation of the calibration solutions
8.3 Measurement
8.3.1 Instrument conditions
11 8.3.2 Optimization of the instrument conditions
8.3.3 Interferences
8.3.4 Matrix effects
8.3.5 Spiking
12 9 Calculation and expression of the results
13 10 Test report

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BSI PD CEN/TS 17770:2022
$102.76