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On October 22, 2024, 9:43:03 AM UTC,
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Added resource read me.txt to Fe-binding ligands, voltammetric methods comparison - PS100
| f | 1 | { | f | 1 | { |
| 2 | "author": null, | 2 | "author": null, | ||
| 3 | "author_email": null, | 3 | "author_email": null, | ||
| 4 | "code": "7b.b.7", | 4 | "code": "7b.b.7", | ||
| 5 | "contributor": "NIOZ Royal Netherlands Institute for Sea Research", | 5 | "contributor": "NIOZ Royal Netherlands Institute for Sea Research", | ||
| 6 | "creator_user_id": "e3aaf5b8-8d0c-4dee-a84a-779b499e9cca", | 6 | "creator_user_id": "e3aaf5b8-8d0c-4dee-a84a-779b499e9cca", | ||
| 7 | "creators": | 7 | "creators": | ||
| 8 | tname\":\"Indah\",\"lastname\":\"Ardiningsih\",\"affiliation\":\"Royal | 8 | tname\":\"Indah\",\"lastname\":\"Ardiningsih\",\"affiliation\":\"Royal | ||
| 9 | Netherlands Institute for Sea | 9 | Netherlands Institute for Sea | ||
| 10 | gsih@nioz.nl\",\"iscorrespondingauthor\":true},{\"firstname\":\"Kechen | 10 | gsih@nioz.nl\",\"iscorrespondingauthor\":true},{\"firstname\":\"Kechen | ||
| 11 | \",\"lastname\":\"Zu\",\"affiliation\":\"GEOMAR Helmholtz Centre for | 11 | \",\"lastname\":\"Zu\",\"affiliation\":\"GEOMAR Helmholtz Centre for | ||
| 12 | Ocean Research | 12 | Ocean Research | ||
| 13 | irstname\":\"Pablo\",\"lastname\":\"Lodeiro\",\"affiliation\":\"GEOMAR | 13 | irstname\":\"Pablo\",\"lastname\":\"Lodeiro\",\"affiliation\":\"GEOMAR | ||
| 14 | Helmholtz Centre for Ocean Research | 14 | Helmholtz Centre for Ocean Research | ||
| 15 | ress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Gert-Jan | 15 | ress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Gert-Jan | ||
| 16 | \",\"lastname\":\"Reichart \",\"affiliation\":\"Royal Netherlands | 16 | \",\"lastname\":\"Reichart \",\"affiliation\":\"Royal Netherlands | ||
| 17 | Institute for Sea Research, University of | 17 | Institute for Sea Research, University of | ||
| 18 | ndingauthor\":false},{\"firstname\":\"Eric\",\"lastname\":\"Achterberg | 18 | ndingauthor\":false},{\"firstname\":\"Eric\",\"lastname\":\"Achterberg | ||
| 19 | \",\"affiliation\":\"GEOMAR Helmholtz Centre for Ocean Research | 19 | \",\"affiliation\":\"GEOMAR Helmholtz Centre for Ocean Research | ||
| 20 | ddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Martha | 20 | ddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Martha | ||
| 21 | \",\"lastname\":\"Gledhill \",\"affiliation\":\"GEOMAR Helmholtz | 21 | \",\"lastname\":\"Gledhill \",\"affiliation\":\"GEOMAR Helmholtz | ||
| 22 | Centre for Ocean Research | 22 | Centre for Ocean Research | ||
| 23 | iladdress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Rob | 23 | iladdress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Rob | ||
| 24 | \",\"lastname\":\"Middag\",\"affiliation\":\"Royal Netherlands | 24 | \",\"lastname\":\"Middag\",\"affiliation\":\"Royal Netherlands | ||
| 25 | Institute for Sea | 25 | Institute for Sea | ||
| 26 | laddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Loes | 26 | laddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Loes | ||
| 27 | \",\"lastname\":\"Gerringa \",\"affiliation\":\"Royal Netherlands | 27 | \",\"lastname\":\"Gerringa \",\"affiliation\":\"Royal Netherlands | ||
| 28 | Institute for Sea | 28 | Institute for Sea | ||
| 29 | 352\",\"contactemailaddress\":\"\",\"iscorrespondingauthor\":false}]", | 29 | 352\",\"contactemailaddress\":\"\",\"iscorrespondingauthor\":false}]", | ||
| 30 | "dataset_persistent_id": "DOI:10.33591/nioz/7b.b.7", | 30 | "dataset_persistent_id": "DOI:10.33591/nioz/7b.b.7", | ||
| 31 | "dates": | 31 | "dates": | ||
| 32 | -08-31T22:00:00.000Z\",\"type\":\"collected\",\"information\":\"\"}]", | 32 | -08-31T22:00:00.000Z\",\"type\":\"collected\",\"information\":\"\"}]", | ||
| 33 | "deposit_date": "2020-08-18", | 33 | "deposit_date": "2020-08-18", | ||
| 34 | "depositor": "Indah Ardiningsih", | 34 | "depositor": "Indah Ardiningsih", | ||
| 35 | "distribution_date": "2020-08-18", | 35 | "distribution_date": "2020-08-18", | ||
| 36 | "distributor": "Research Data Management(NIOZ Royal Netherlands | 36 | "distributor": "Research Data Management(NIOZ Royal Netherlands | ||
| 37 | Institute for Sea Research)", | 37 | Institute for Sea Research)", | ||
| 38 | "doi_date_published": "2020-12-15", | 38 | "doi_date_published": "2020-12-15", | ||
| 39 | "funding_references": "[{\"name\":\"Indonesia Endowment Fund for | 39 | "funding_references": "[{\"name\":\"Indonesia Endowment Fund for | ||
| 40 | Education (LPDP)\",\"awardnumber\":\"\",\"awardtitle\":\"Doctoral | 40 | Education (LPDP)\",\"awardnumber\":\"\",\"awardtitle\":\"Doctoral | ||
| 41 | scholarship awarded to Indah Ardiningsih\"},{\"name\":\"The China | 41 | scholarship awarded to Indah Ardiningsih\"},{\"name\":\"The China | ||
| 42 | Scholarship Council\",\"awardnumber\":\"\",\"awardtitle\":\"a | 42 | Scholarship Council\",\"awardnumber\":\"\",\"awardtitle\":\"a | ||
| 43 | scholarship awarded to Kechen Zu\"}]", | 43 | scholarship awarded to Kechen Zu\"}]", | ||
| 44 | "geographic_coverage": | 44 | "geographic_coverage": | ||
| 45 | 8.4,\"longitude_1\":80.5,\"latitude_2\":-19.6,\"longitude_2\":76.8}]", | 45 | 8.4,\"longitude_1\":80.5,\"latitude_2\":-19.6,\"longitude_2\":76.8}]", | ||
| 46 | "groups": [], | 46 | "groups": [], | ||
| 47 | "id": "12839a48-db54-442b-9691-5f707824f1f1", | 47 | "id": "12839a48-db54-442b-9691-5f707824f1f1", | ||
| 48 | "isopen": false, | 48 | "isopen": false, | ||
| 49 | "license_title": null, | 49 | "license_title": null, | ||
| 50 | "maintainer": null, | 50 | "maintainer": null, | ||
| 51 | "maintainer_email": null, | 51 | "maintainer_email": null, | ||
| 52 | "metadata_created": "2024-10-22T09:43:02.573549", | 52 | "metadata_created": "2024-10-22T09:43:02.573549", | ||
| n | 53 | "metadata_modified": "2024-10-22T09:43:02.573556", | n | 53 | "metadata_modified": "2024-10-22T09:43:03.012420", |
| 54 | "name": "7bb7", | 54 | "name": "7bb7", | ||
| 55 | "notes": "Competitive ligand exchange \u2013 adsorptive cathodic | 55 | "notes": "Competitive ligand exchange \u2013 adsorptive cathodic | ||
| 56 | stripping voltammetry (CLE-AdCSV) is a widely used technique to | 56 | stripping voltammetry (CLE-AdCSV) is a widely used technique to | ||
| 57 | determine dissolved iron (Fe) speciation in seawater, and involves | 57 | determine dissolved iron (Fe) speciation in seawater, and involves | ||
| 58 | competition for Fe of a known added ligand (AL) with natural organic | 58 | competition for Fe of a known added ligand (AL) with natural organic | ||
| 59 | ligands. In this study three different ALs were used, | 59 | ligands. In this study three different ALs were used, | ||
| 60 | 2-(2-thiazolylazo)-p-cresol (TAC), salicylaldoxime (SA) and | 60 | 2-(2-thiazolylazo)-p-cresol (TAC), salicylaldoxime (SA) and | ||
| 61 | 1-nitroso-2-napthol (NN). The total ligand concentrations ([Lt]) and | 61 | 1-nitroso-2-napthol (NN). The total ligand concentrations ([Lt]) and | ||
| 62 | conditional stability constants (log K\u00b4Fe\u00b4L) obtained using | 62 | conditional stability constants (log K\u00b4Fe\u00b4L) obtained using | ||
| 63 | the different ALs are compared. The comparison was done on seawater | 63 | the different ALs are compared. The comparison was done on seawater | ||
| 64 | samples from Fram Strait and northeast Greenland shelf region, | 64 | samples from Fram Strait and northeast Greenland shelf region, | ||
| 65 | including the Norske Trough, Nioghalvfjerdsfjorden (79N) Glacier front | 65 | including the Norske Trough, Nioghalvfjerdsfjorden (79N) Glacier front | ||
| 66 | and Westwind Trough. Data interpretation using a one-ligand model | 66 | and Westwind Trough. Data interpretation using a one-ligand model | ||
| 67 | resulted in [Lt]SA (2.72 \u00b1 0.99 nM eq Fe) > [Lt]TAC (1.77 \u00b1 | 67 | resulted in [Lt]SA (2.72 \u00b1 0.99 nM eq Fe) > [Lt]TAC (1.77 \u00b1 | ||
| 68 | 0.57 nM eq Fe) > [Lt]NN (1.57 \u00b1 0.58 nM eq Fe); with the mean of | 68 | 0.57 nM eq Fe) > [Lt]NN (1.57 \u00b1 0.58 nM eq Fe); with the mean of | ||
| 69 | log K\u00b4Fe\u00b4L being the highest for TAC (log | 69 | log K\u00b4Fe\u00b4L being the highest for TAC (log | ||
| 70 | K\u00b4Fe\u00b4L(TAC) = 12.8 \u00b1 0.5), followed by SA (log | 70 | K\u00b4Fe\u00b4L(TAC) = 12.8 \u00b1 0.5), followed by SA (log | ||
| 71 | K\u00b4Fe\u00b4L(SA) = 10.9 \u00b1 0.4) and NN (log | 71 | K\u00b4Fe\u00b4L(SA) = 10.9 \u00b1 0.4) and NN (log | ||
| 72 | K\u00b4Fe\u00b4L(NN) = 10.1 \u00b1 0.6). These differences are only | 72 | K\u00b4Fe\u00b4L(NN) = 10.1 \u00b1 0.6). These differences are only | ||
| 73 | partly explained by the detection windows employed, and are probably | 73 | partly explained by the detection windows employed, and are probably | ||
| 74 | due to uncertainties propagated from the calibration and the | 74 | due to uncertainties propagated from the calibration and the | ||
| 75 | heterogeneity of the natural organic ligands. An almost constant ratio | 75 | heterogeneity of the natural organic ligands. An almost constant ratio | ||
| 76 | of [Lt]TAC/[Lt]SA = 0.5 - 0.6 was obtained in samples over the shelf, | 76 | of [Lt]TAC/[Lt]SA = 0.5 - 0.6 was obtained in samples over the shelf, | ||
| 77 | potentially related to contributions of humic acid-type ligands. In | 77 | potentially related to contributions of humic acid-type ligands. In | ||
| 78 | contrast, in Fram Strait [Lt]TAC/[Lt]SA varied considerably from 0.6 | 78 | contrast, in Fram Strait [Lt]TAC/[Lt]SA varied considerably from 0.6 | ||
| 79 | to 1, indicating the influence of other ligand types, which seemed to | 79 | to 1, indicating the influence of other ligand types, which seemed to | ||
| 80 | be detected to a different extent by the TAC and SA methods. Our | 80 | be detected to a different extent by the TAC and SA methods. Our | ||
| 81 | results show that even though the SA, TAC and NN methods have | 81 | results show that even though the SA, TAC and NN methods have | ||
| 82 | different detection windows, the results of the one ligand model | 82 | different detection windows, the results of the one ligand model | ||
| 83 | captured a similar trend in [Lt], increasing from Fram Strait to the | 83 | captured a similar trend in [Lt], increasing from Fram Strait to the | ||
| 84 | Norske Trough to the Westwind Trough. Application of a two-ligand | 84 | Norske Trough to the Westwind Trough. Application of a two-ligand | ||
| 85 | model confirms a previous suggestion that in Polar Surface Water and | 85 | model confirms a previous suggestion that in Polar Surface Water and | ||
| 86 | in water masses over the shelf, two ligand groups existed, a | 86 | in water masses over the shelf, two ligand groups existed, a | ||
| 87 | relatively strong and relatively weak ligand group. The relatively | 87 | relatively strong and relatively weak ligand group. The relatively | ||
| 88 | weak ligand group contributed less to the total complexation capacity, | 88 | weak ligand group contributed less to the total complexation capacity, | ||
| 89 | hence it could only keep part of Fe released from the 79N Glacier in | 89 | hence it could only keep part of Fe released from the 79N Glacier in | ||
| 90 | the dissolved phase. Although the SA method had the lowest detection | 90 | the dissolved phase. Although the SA method had the lowest detection | ||
| 91 | window compared to the TAC and NN methods, the SA method seemed to | 91 | window compared to the TAC and NN methods, the SA method seemed to | ||
| 92 | detect a wider view of the ligand groups.", | 92 | detect a wider view of the ligand groups.", | ||
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| 96 | "approval_status": "approved", | 96 | "approval_status": "approved", | ||
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| 110 | "production_date": "2020-12-15", | 110 | "production_date": "2020-12-15", | ||
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| 153 | "title": "Fe-binding ligands, voltammetric methods comparison - | 176 | "title": "Fe-binding ligands, voltammetric methods comparison - | ||
| 154 | PS100", | 177 | PS100", | ||
| 155 | "type": "dataset", | 178 | "type": "dataset", | ||
| 156 | "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.7", | 179 | "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.7", | ||
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| 158 | } | 181 | } |