Changes

              
    

          
          
        
        

            
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": "2024-10-22T09:43:03.291902",
n
53
  "metadata_modified": "2024-10-22T09:43:03.769405",
            
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.",
            
n
93
  "num_resources": 2,
n
93
  "num_resources": 3,
            
94
  "num_tags": 5,
94
  "num_tags": 5,
            
95
  "organization": {
95
  "organization": {
            
96
    "approval_status": "approved",
96
    "approval_status": "approved",
            
97
    "created": "2024-10-22T06:06:56.074257",
97
    "created": "2024-10-22T06:06:56.074257",
            
98
    "description": "",
98
    "description": "",
            
99
    "id": "bed2a893-3895-450b-bf4b-c74318003b1b",
99
    "id": "bed2a893-3895-450b-bf4b-c74318003b1b",
            
100
    "image_url": 
100
    "image_url": 
            
101
z.nl/application/files/1216/8924/5333/NIOZ-logo_witte_randi-2023.svg",
101
z.nl/application/files/1216/8924/5333/NIOZ-logo_witte_randi-2023.svg",
            
102
    "is_organization": true,
102
    "is_organization": true,
            
103
    "name": "nioz",
103
    "name": "nioz",
            
104
    "state": "active",
104
    "state": "active",
            
105
    "title": "Royal Netherlands Institute for Sea Research",
105
    "title": "Royal Netherlands Institute for Sea Research",
            
106
    "type": "organization"
106
    "type": "organization"
            
107
  },
107
  },
            
108
  "owner_org": "bed2a893-3895-450b-bf4b-c74318003b1b",
108
  "owner_org": "bed2a893-3895-450b-bf4b-c74318003b1b",
            
109
  "private": false,
109
  "private": false,
            
110
  "production_date": "2020-12-15",
110
  "production_date": "2020-12-15",
            
111
  "relationships_as_object": [],
111
  "relationships_as_object": [],
            
112
  "relationships_as_subject": [],
112
  "relationships_as_subject": [],
            
113
  "resources": [
113
  "resources": [
            
114
    {
114
    {
            
115
      "cache_last_updated": null,
115
      "cache_last_updated": null,
            
116
      "cache_url": null,
116
      "cache_url": null,
            
117
      "created": "2024-10-22T09:43:03.040306",
117
      "created": "2024-10-22T09:43:03.040306",
            
118
      "datastore_active": false,
118
      "datastore_active": false,
            
119
      "format": "TXT",
119
      "format": "TXT",
            
120
      "hash": "9b460167b4caa4478fe2af0b4102b7d1",
120
      "hash": "9b460167b4caa4478fe2af0b4102b7d1",
            
121
      "id": "ea2df54f-c4bf-44f2-95af-319760ae339f",
121
      "id": "ea2df54f-c4bf-44f2-95af-319760ae339f",
            
122
      "last_modified": "2024-10-22T09:43:03.004194",
122
      "last_modified": "2024-10-22T09:43:03.004194",
            
123
      "metadata_modified": "2024-10-22T09:43:03.300776",
123
      "metadata_modified": "2024-10-22T09:43:03.300776",
            
124
      "mimetype": "text/plain",
124
      "mimetype": "text/plain",
            
125
      "mimetype_inner": null,
125
      "mimetype_inner": null,
            
126
      "name": "read me.txt",
126
      "name": "read me.txt",
            
127
      "package_id": "12839a48-db54-442b-9691-5f707824f1f1",
127
      "package_id": "12839a48-db54-442b-9691-5f707824f1f1",
            
128
      "position": 0,
128
      "position": 0,
            
129
      "resource_type": null,
129
      "resource_type": null,
            
130
      "size": 1353,
130
      "size": 1353,
            
131
      "state": "active",
131
      "state": "active",
            
132
      "url": 
132
      "url": 
            
133
1/resource/ea2df54f-c4bf-44f2-95af-319760ae339f/download/read-me.txt",
133
1/resource/ea2df54f-c4bf-44f2-95af-319760ae339f/download/read-me.txt",
            
134
      "url_type": "upload"
134
      "url_type": "upload"
            
135
    },
135
    },
            
136
    {
136
    {
            
137
      "cache_last_updated": null,
137
      "cache_last_updated": null,
            
138
      "cache_url": null,
138
      "cache_url": null,
            
139
      "created": "2024-10-22T09:43:03.315703",
139
      "created": "2024-10-22T09:43:03.315703",
            
140
      "datastore_active": false,
140
      "datastore_active": false,
            
141
      "format": "CSV",
141
      "format": "CSV",
            
142
      "hash": "8e8594591a37af295e10e80e432faeaa",
142
      "hash": "8e8594591a37af295e10e80e432faeaa",
            
143
      "id": "7c4b14b0-7e74-41a5-b499-424f2aa7b1b9",
143
      "id": "7c4b14b0-7e74-41a5-b499-424f2aa7b1b9",
            
144
      "last_modified": "2024-10-22T09:43:03.266918",
144
      "last_modified": "2024-10-22T09:43:03.266918",
            
n
145
      "metadata_modified": "2024-10-22T09:43:03.301981",
n
145
      "metadata_modified": "2024-10-22T09:43:03.775351",
            
146
      "mimetype": "text/csv",
146
      "mimetype": "text/csv",
            
147
      "mimetype_inner": null,
147
      "mimetype_inner": null,
            
148
      "name": "PS100 - Methods comparison - the two-ligand model.csv",
148
      "name": "PS100 - Methods comparison - the two-ligand model.csv",
            
149
      "package_id": "12839a48-db54-442b-9691-5f707824f1f1",
149
      "package_id": "12839a48-db54-442b-9691-5f707824f1f1",
            
150
      "position": 1,
150
      "position": 1,
            
151
      "resource_type": null,
151
      "resource_type": null,
            
152
      "size": 11031,
152
      "size": 11031,
            
153
      "state": "active",
153
      "state": "active",
            
154
      "url": 
154
      "url": 
            
155
f2aa7b1b9/download/ps100-methods-comparison-the-two-ligand-model.csv",
155
f2aa7b1b9/download/ps100-methods-comparison-the-two-ligand-model.csv",
            
t
t
156
      "url_type": "upload"
            
157
    },
            
158
    {
            
159
      "cache_last_updated": null,
            
160
      "cache_url": null,
            
161
      "created": "2024-10-22T09:43:03.789882",
            
162
      "datastore_active": false,
            
163
      "format": "CSV",
            
164
      "hash": "cfb20e9a1dce4cf9e3d5aac46ab062b4",
            
165
      "id": "8820e4f8-2f39-4947-bcb2-9d1aa9a4e3f8",
            
166
      "last_modified": "2024-10-22T09:43:03.737070",
            
167
      "metadata_modified": "2024-10-22T09:43:03.776457",
            
168
      "mimetype": "text/csv",
            
169
      "mimetype_inner": null,
            
170
      "name": "PS100 - Methods comparison - the one-ligand model.csv",
            
171
      "package_id": "12839a48-db54-442b-9691-5f707824f1f1",
            
172
      "position": 2,
            
173
      "resource_type": null,
            
174
      "size": 12244,
            
175
      "state": "active",
            
176
      "url": 
            
177
aa9a4e3f8/download/ps100-methods-comparison-the-one-ligand-model.csv",
            
156
      "url_type": "upload"
178
      "url_type": "upload"
            
157
    }
179
    }
            
158
  ],
180
  ],
            
159
  "state": "active",
181
  "state": "active",
            
160
  "subject": "Earth and Environmental Sciences",
182
  "subject": "Earth and Environmental Sciences",
            
161
  "tags": [
183
  "tags": [
            
162
    {
184
    {
            
163
      "display_name": "Arctic",
185
      "display_name": "Arctic",
            
164
      "id": "f1d50154-cdd5-4098-bf92-19911f668a2a",
186
      "id": "f1d50154-cdd5-4098-bf92-19911f668a2a",
            
165
      "name": "Arctic",
187
      "name": "Arctic",
            
166
      "state": "active",
188
      "state": "active",
            
167
      "vocabulary_id": null
189
      "vocabulary_id": null
            
168
    },
190
    },
            
169
    {
191
    {
            
170
      "display_name": "Fram strait",
192
      "display_name": "Fram strait",
            
171
      "id": "a5191ac7-b9eb-4cf8-8324-2fda29140611",
193
      "id": "a5191ac7-b9eb-4cf8-8324-2fda29140611",
            
172
      "name": "Fram strait",
194
      "name": "Fram strait",
            
173
      "state": "active",
195
      "state": "active",
            
174
      "vocabulary_id": null
196
      "vocabulary_id": null
            
175
    },
197
    },
            
176
    {
198
    {
            
177
      "display_name": "GEOTRACES",
199
      "display_name": "GEOTRACES",
            
178
      "id": "7dfbe2d5-19cd-4d60-8732-d1d46405100a",
200
      "id": "7dfbe2d5-19cd-4d60-8732-d1d46405100a",
            
179
      "name": "GEOTRACES",
201
      "name": "GEOTRACES",
            
180
      "state": "active",
202
      "state": "active",
            
181
      "vocabulary_id": null
203
      "vocabulary_id": null
            
182
    },
204
    },
            
183
    {
205
    {
            
184
      "display_name": "Iron",
206
      "display_name": "Iron",
            
185
      "id": "aa2b3ea1-6a3a-4a4c-92f5-14ea050c246f",
207
      "id": "aa2b3ea1-6a3a-4a4c-92f5-14ea050c246f",
            
186
      "name": "Iron",
208
      "name": "Iron",
            
187
      "state": "active",
209
      "state": "active",
            
188
      "vocabulary_id": null
210
      "vocabulary_id": null
            
189
    },
211
    },
            
190
    {
212
    {
            
191
      "display_name": "Organic ligands",
213
      "display_name": "Organic ligands",
            
192
      "id": "7f42d4f9-2678-4991-8078-0d3970f42c18",
214
      "id": "7f42d4f9-2678-4991-8078-0d3970f42c18",
            
193
      "name": "Organic ligands",
215
      "name": "Organic ligands",
            
194
      "state": "active",
216
      "state": "active",
            
195
      "vocabulary_id": null
217
      "vocabulary_id": null
            
196
    }
218
    }
            
197
  ],
219
  ],
            
198
  "title": "Fe-binding ligands, voltammetric methods comparison - 
220
  "title": "Fe-binding ligands, voltammetric methods comparison - 
            
199
PS100",
221
PS100",
            
200
  "type": "dataset",
222
  "type": "dataset",
            
201
  "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.7",
223
  "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.7",
            
202
  "version": "1"
224
  "version": "1"
            
203
}
225
}