BS ISO 19746:2017
$102.76
Determination of urea content in urea-based fertilizers by high performance liquid chromatography (HPLC)
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 20 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principles 5 Reagents |
| 10 | 6 Apparatus 7 Procedures 7.1 Preparation of test sample 7.2 Preparation of the test solution |
| 11 | 7.3 Preparation of urea working standard solution 7.4 HPLC conditions 7.5 Preparation of standard curve |
| 12 | 7.6 Determination of the urea content in the test solution 7.7 Calculation and expression of results 7.8 Precision 7.8.1 Repeatability, r 7.8.2 Reproducibility, R 7.9 Test report |
| 13 | Annex A (informative) Examples of the retention times of triuret, biuret, urea and some other ureaforms |
| 16 | Bibliography |
