BS EN 16319:2013+A1:2015:2016 Edition
$142.49
Fertilizers and liming materials. Determination of cadmium, chromium, lead and nickel by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 24 |
This European Standard specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers and liming materials using inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.
NOTE 1 Due to significant interference from Cu, Fe and Mn, no valid results can be reported using this method for fertilizer matrices containing high concentrations (≥ 10 %) of these micro-nutrients.
NOTE 2 The term fertilizer is used throughout the body of this European Standard and needs to be taken to include liming materials unless otherwise indicated.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | European foreword |
| 6 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Sampling and sample preparation 6 Reagents |
| 7 | 7 Apparatus |
| 8 | 8 Procedure 8.1 General |
| 9 | 8.2 Preparation of the test solution 8.2.1 General 8.2.2 Preparation 8.3 Preparation of the test solution for the correction of matrix effects by spike recovery |
| 10 | 8.4 Preparation of the blank test solution 8.5 Preparation of the calibration solutions for the analysis of cadmium, chromium, nickel and lead 8.6 Determination of cadmium, chromium, nickel and lead by ICP-AES 8.6.1 General 8.6.2 Determination by ICP-AES |
| 11 | Table 1 — General analytical conditions for the determination of cadmium and chromium by ICP-AES Table 2 — General analytical conditions for the determination of nickel and lead by ICP-AES |
| 12 | 9 Calculation and expression of the results 9.1 External calibration 9.2 Correction for spike recovery |
| 13 | 9.3 Standard addition method 9.4 Calculation of the element content in the sample |
| 14 | 10 Precision 10.1 Inter-laboratory tests 10.2 Repeatability 10.3 Reproducibility Table 3 — Mean values, repeatability and reproducibility limits for cadmium |
| 15 | Table 4 — Mean values, repeatability and reproducibility limits for total chromium Table 5 — Mean values, repeatability and reproducibility limits for nickel Table 6 — Mean values, repeatability and reproducibility limits for lead 11 Test report |
| 17 | Annex A (informative) Results of the inter-laboratory test A.1 Inter-laboratory tests A.2 Statistical results for the determination of cadmium, chromium, lead and nickel !for fertilizers” Table A.1 — Statistical results for cadmium |
| 18 | Table A.2 — Statistical results for total chromium Table A.3 — Statistical results for nickel |
| 19 | Table A.4 — Statistical results for lead A.3 Statistical results for the determination of cadmium, chromium, lead and nickel for liming materials Table A.5 — Statistical results for cadmium |
| 20 | Table A.6 — Statistical results for total chromium Table A.7 — Statistical results for nickel |
| 21 | Table A.8 — Statistical results for lead |
| 22 | Bibliography |
