Simple, accurate, and precise detection of total nitrogen in surface waters using a smartphone-based analytical method
Yazarlar (1)
Prof. Dr. Fatih POLAT
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Analytical Sciences |
| Dergi ISSN | 0910-6340 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q3 |
| Makale Dili | İngilizce |
| Basım Tarihi | 03-2025 |
| Cilt No | 41 |
| Sayı | 3 |
| Sayfalar | 281 / 287 |
| DOI Numarası | 10.1007/s44211-024-00696-3 |
| Makale Linki | https://doi.org/10.1007/s44211-024-00696-3 |
| Özet |
| In this study, a simple, accurate, and precise analytical strategy was developed for the determination of total nitrogen (total dissolved nitrogen + particulate nitrogen) in surface waters using smartphone technology. The spectrophotometric method based on digestion with persulfate, commonly used in water analyses, was integrated with a digital image-based colorimetric detection system (DIC). To evaluate the accuracy of the total nitrogen-digital image-based colorimetric detection system (TN-DIC), results obtained from the Hach method and UV–VIS spectrophotometer were compared with the RGB values obtained from the smartphone imaging system. T-Test results indicated no statistically significant difference between the results obtained from the TN-DIC method and the standard methods. The linear range of the TN-DIC method was determined to be 0.25–5 mg/L. The analytical quality indicators of the system were established as follows: limit of detection (LOD) 0.095 ppm, limit of quantification (LOQ) 0.29 ppm, %RSD 0.32, and R2 value 0.9982. Recovery percentages (99–112%) used to measure the analytical performance of the method were calculated through spike applications at concentrations of 1 and 2 ppm in real water samples. Unlike traditional spectrophotometric methods, this smartphone-based approach is fast, simple, and cost-effective, requiring no complex equipment during analysis. |
| Anahtar Kelimeler |
| Digital image analysis | Smartphone | Total nitrogen analysis |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| WoS | 2 |
| SCOPUS | 3 |
| Google Scholar | 3 |