@misc{frank_using_sequential_2007, 
author={Frank, C., Schroeder, F.},
title={Using sequential injection analysis to improve system and data reliability of on-line methods: Determination of ammonium and phosphate in coastal waters},
year={2007},
howpublished = {journal article},
doi = {https://doi.org/10.1155/2007/49535},
abstract = {0.05 μM. Results from a campaign in summer 2005 are shown.},
note = {Online available at: \url{https://doi.org/10.1155/2007/49535} (DOI). Frank, C.; Schroeder, F.: Using sequential injection analysis to improve system and data reliability of on-line methods: Determination of ammonium and phosphate in coastal waters. Journal of Automated Methods and Management in Chemistry. 2007. 49535. DOI: 10.1155/2007/49535}}