Automated Method for the Sensitive Analysis of Volatile Amines in Seawater
dc.contributor.author | Akenga, PC | |
dc.contributor.author | Fitzsimons, MF | |
dc.date.accessioned | 2024-05-08T08:57:24Z | |
dc.date.available | 2024-05-08T08:57:24Z | |
dc.date.issued | 2024-05-03 | |
dc.identifier.issn | 2690-0637 | |
dc.identifier.issn | 2690-0637 | |
dc.identifier.uri | https://pearl.plymouth.ac.uk/handle/10026.1/22470 | |
dc.description | Dimensions Grant ID: grant.6503092 | |
dc.description.abstract |
Methylamines are polar, volatile, and organic nitrogen-containing compounds. They are challenging to analyze, limiting our understanding of their occurrence and role within the marine nitrogen cycle. We describe an automated headspace solid-phase microextraction method, coupled with gas chromatography and nitrogen phosphorus detection (HS-SPME-GC-NPD), for analyzing methylamines in seawater. Three SPME conditions were investigated: temperature, equilibration, and extraction. The method was 6–24 times more sensitive to trimethylamine (TMA) than to dimethylamine (DMA) and monomethylamine (MMA). DMA and TMA were detected in small seawater volumes (2.5–10 mL), at volumes 100–400 times that previously reported. Detection limits of 19.1, 6.6, and 4.1 nM (nMol L–1) for MMA, DMA, and TMA, respectively, were measured in 10 mL sample volumes. Sample throughput was 4–6 times greater than previously reported similar methods. According to the Blue Applicability Grade Index (BAGI) metric, the method was considered “practical” and scored 62.5. The method was used to measure methylamines in seawater samples collected from the Southern Ocean. DMA and TMA were detected at concentrations from < LoD-35 nM and < LoD-48 nM, respectively. This study offers a systematic and standardized method for MA analysis in seawater and can significantly advance understanding of their role in marine systems. | |
dc.language | en | |
dc.publisher | American Chemical Society | |
dc.subject | 3107 Microbiology | |
dc.subject | 31 Biological Sciences | |
dc.subject | 34 Chemical Sciences | |
dc.subject | 14 Life Below Water | |
dc.title | Automated Method for the Sensitive Analysis of Volatile Amines in Seawater | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.publisher-url | http://dx.doi.org/10.1021/acsestwater.4c00007 | |
plymouth.publication-status | Published online | |
plymouth.journal | ACS ES&T Water | |
dc.identifier.doi | 10.1021/acsestwater.4c00007 | |
plymouth.organisational-group | |Plymouth | |
plymouth.organisational-group | |Plymouth|Research Groups | |
plymouth.organisational-group | |Plymouth|Faculty of Science and Engineering | |
plymouth.organisational-group | |Plymouth|Faculty of Science and Engineering|School of Geography, Earth and Environmental Sciences | |
plymouth.organisational-group | |Plymouth|Research Groups|Marine Institute | |
plymouth.organisational-group | |Plymouth|REF 2021 Researchers by UoA | |
plymouth.organisational-group | |Plymouth|Users by role | |
plymouth.organisational-group | |Plymouth|Users by role|Current Academic staff | |
plymouth.organisational-group | |Plymouth|Research Groups|BEACh | |
plymouth.organisational-group | |Plymouth|REF 2021 Researchers by UoA|UoA07 Earth Systems and Environmental Sciences | |
plymouth.organisational-group | |Plymouth|Users by role|Researchers in ResearchFish submission | |
plymouth.organisational-group | |Plymouth|REF 2029 Researchers by UoA | |
plymouth.organisational-group | |Plymouth|REF 2029 Researchers by UoA|UoA07 Earth Systems and Environmental Sciences | |
dcterms.dateAccepted | 2024-04-22 | |
dc.date.updated | 2024-05-08T08:57:23Z | |
dc.rights.embargodate | 2024-5-11 | |
dc.identifier.eissn | 2690-0637 | |
rioxxterms.versionofrecord | 10.1021/acsestwater.4c00007 |