Ion chromatograph with 3D printed absorbance detector for indirect UV absorbance detection of phosphate in effluent and natural waters

Type Article
Date 2022-03
Language English
Author(s) Lace Annija1, Byrne Aideen1, Bluett Simon4, Malaquin Laurent2, Raimbault Vincent2, Courson RemiORCID3, Hayat Zain2, Moore Breda1, Murray EoinORCID1, 4
Affiliation(s) 1 : Research & Development T.E. Laboratories Ltd. (TelLab) Tullow Carlow, Ireland
2 : LAAS‐CNRS Université de Toulouse CNRS Toulouse F‐31400 ,France
3 : IFREMER, Laboratoire Détection Capteurs et Mesures (REM‐RDT‐LDCM), France
4 : Research & Development Aquamonitrix Ltd. Carlow ,Ireland
Source Journal Of Separation Science (1615-9306) (Wiley), 2022-03 , Vol. 45 , N. 5 , P. 1042-1050
DOI 10.1002/jssc.202100897
Keyword(s) indirect ultraviolet detection, ion chromatography, phosphate, stereolithography detection cell, water analysis

An ion chromatography system employing a low-cost 3D printed absorbance detector for indirect UV detection towards portable phosphate analysis of environmental and industrial waters has been developed. The optical detection cell was fabricated using stereolithography 3D printing of nanocomposite material. Chromatographic analysis and detection of phosphate was carried out using a CS5A 4×250 mm analytical column with indirect UV detection using a 255 nm light emitting diode. Isocratic elution using a 0.6 mM potassium phthalate eluent combined with 1.44 mM sodium bicarbonate was employed at a flow rate of 0.75 ml min-1. A linear calibration range of 0.5 to 30 mg L-1 PO4 3- applicable to environmental and wastewater analysis was achieved. For retention time and peak area repeatability, RSD values were 0.68 % and 4.09 %, respectively. Environmental and wastewater samples were analysed with the optimised ion chromatography platform and the results were compared to values obtained by an accredited ion chromatographer. For the analysis of environmental samples, relative errors of < 14 % were achieved. Recovery analysis was also carried out on both freshwater and wastewater samples and recovery results were within the acceptable range for water analysis using standard ion chromatography methods.

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Lace Annija, Byrne Aideen, Bluett Simon, Malaquin Laurent, Raimbault Vincent, Courson Remi, Hayat Zain, Moore Breda, Murray Eoin (2022). Ion chromatograph with 3D printed absorbance detector for indirect UV absorbance detection of phosphate in effluent and natural waters. Journal Of Separation Science, 45(5), 1042-1050. Publisher's official version : , Open Access version :