Research article
|
07 May 2019
Research article |
|
07 May 2019
Preparation of primary standard mixtures for atmospheric oxygen measurements with less than 1 µmol mol−1 uncertainty for oxygen molar fractions
Nobuyuki Aoki ,Shigeyuki Ishidoya ,Nobuhiro Matsumoto ,Takuro Watanabe ,Takuya Shimosaka ,and Shohei Murayama
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Total article views: 2,109 (including HTML, PDF, and XML)
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1,403
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2,109
48
49
HTML: 1,403
PDF: 659
XML: 47
Total: 2,109
BibTeX: 48
EndNote: 49
Views and downloads (calculated since 26 Jun 2018)
Month
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PDF
XML
Total
Jun 2018
125
34
6
165
Jul 2018
91
15
3
109
Aug 2018
30
8
2
40
Sep 2018
7
6
0
13
Oct 2018
15
6
0
21
Nov 2018
17
9
0
26
Dec 2018
27
14
1
42
Jan 2019
28
14
0
42
Feb 2019
14
3
0
17
Mar 2019
31
10
0
41
Apr 2019
15
6
0
21
May 2019
189
63
7
259
Jun 2019
48
12
1
61
Jul 2019
11
8
0
19
Aug 2019
21
9
0
30
Sep 2019
9
5
0
14
Oct 2019
10
11
1
22
Nov 2019
17
11
0
28
Dec 2019
20
7
0
27
Jan 2020
13
12
1
26
Feb 2020
7
5
0
12
Mar 2020
11
8
1
20
Apr 2020
16
7
0
23
May 2020
21
5
0
26
Jun 2020
19
13
0
32
Jul 2020
26
22
3
51
Aug 2020
16
10
2
28
Sep 2020
12
3
0
15
Oct 2020
15
4
2
21
Nov 2020
9
10
0
19
Dec 2020
19
10
0
29
Jan 2021
9
12
0
21
Feb 2021
14
8
0
22
Mar 2021
17
11
0
28
Apr 2021
13
8
0
21
May 2021
25
8
1
34
Jun 2021
7
9
1
17
Jul 2021
10
11
1
22
Aug 2021
15
19
1
35
Sep 2021
22
13
0
35
Oct 2021
14
41
0
55
Nov 2021
12
29
1
42
Dec 2021
19
4
1
24
Jan 2022
18
11
1
30
Feb 2022
11
5
1
17
Mar 2022
16
7
1
24
Apr 2022
15
2
1
18
May 2022
11
11
1
23
Jun 2022
9
9
0
18
Jul 2022
17
8
0
25
Aug 2022
29
8
0
37
Sep 2022
20
6
1
27
Oct 2022
47
6
1
54
Nov 2022
27
8
1
36
Dec 2022
23
6
0
29
Jan 2023
13
10
0
23
Feb 2023
21
7
1
29
Mar 2023
18
5
1
24
Apr 2023
9
7
0
16
May 2023
8
7
1
16
Jun 2023
5
3
0
8
Cumulative views and downloads
(calculated since 26 Jun 2018)
Month
HTML views
PDF downloads
XML downloads
Jun 2018
125
34
6
165
Jul 2018
216
49
9
274
Aug 2018
246
57
11
314
Sep 2018
253
63
11
327
Oct 2018
268
69
11
348
Nov 2018
285
78
11
374
Dec 2018
312
92
12
416
Jan 2019
340
106
12
458
Feb 2019
354
109
12
475
Mar 2019
385
119
12
516
Apr 2019
400
125
12
537
May 2019
589
188
19
796
Jun 2019
637
200
20
857
Jul 2019
648
208
20
876
Aug 2019
669
217
20
906
Sep 2019
678
222
20
920
Oct 2019
688
233
21
942
Nov 2019
705
244
21
970
Dec 2019
725
251
21
997
Jan 2020
738
263
22
1,023
Feb 2020
745
268
22
1,035
Mar 2020
756
276
23
1,055
Apr 2020
772
283
23
1,078
May 2020
793
288
23
1,104
Jun 2020
812
301
23
1,136
Jul 2020
838
323
26
1,187
Aug 2020
854
333
28
1,215
Sep 2020
866
336
28
1,230
Oct 2020
881
340
30
1,251
Nov 2020
890
350
30
1,270
Dec 2020
909
360
30
1,299
Jan 2021
918
372
30
1,320
Feb 2021
932
380
30
1,342
Mar 2021
949
391
30
1,370
Apr 2021
962
399
30
1,391
May 2021
987
407
31
1,425
Jun 2021
994
416
32
1,442
Jul 2021
1,004
427
33
1,464
Aug 2021
1,019
446
34
1,499
Sep 2021
1,041
459
34
1,534
Oct 2021
1,055
500
34
1,589
Nov 2021
1,067
529
35
1,631
Dec 2021
1,086
533
36
1,655
Jan 2022
1,104
544
37
1,685
Feb 2022
1,115
549
38
1,702
Mar 2022
1,131
556
39
1,726
Apr 2022
1,146
558
40
1,744
May 2022
1,157
569
41
1,767
Jun 2022
1,166
578
41
1,785
Jul 2022
1,183
586
41
1,810
Aug 2022
1,212
594
41
1,847
Sep 2022
1,232
600
42
1,874
Oct 2022
1,279
606
43
1,928
Nov 2022
1,306
614
44
1,964
Dec 2022
1,329
620
44
1,993
Jan 2023
1,342
630
44
2,016
Feb 2023
1,363
637
45
2,045
Mar 2023
1,381
642
46
2,069
Apr 2023
1,390
649
46
2,085
May 2023
1,398
656
47
2,101
Jun 2023
1,403
659
47
2,109
Total article views: 1,379 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
939
406
34
1,379
39
39
HTML: 939
PDF: 406
XML: 34
Total: 1,379
BibTeX: 39
EndNote: 39
Views and downloads (calculated since 07 May 2019)
Month
HTML
PDF
XML
Total
May 2019
175
60
7
242
Jun 2019
46
10
1
57
Jul 2019
8
6
0
14
Aug 2019
19
8
0
27
Sep 2019
7
4
0
11
Oct 2019
10
11
1
22
Nov 2019
17
11
0
28
Dec 2019
19
5
0
24
Jan 2020
12
12
1
25
Feb 2020
6
5
0
11
Mar 2020
10
7
1
18
Apr 2020
16
6
0
22
May 2020
21
4
0
25
Jun 2020
13
6
0
19
Jul 2020
22
8
3
33
Aug 2020
16
6
2
24
Sep 2020
12
2
0
14
Oct 2020
15
3
1
19
Nov 2020
9
7
0
16
Dec 2020
18
6
0
24
Jan 2021
8
4
0
12
Feb 2021
13
5
0
18
Mar 2021
17
10
0
27
Apr 2021
11
4
0
15
May 2021
25
6
1
32
Jun 2021
6
7
1
14
Jul 2021
10
6
1
17
Aug 2021
14
7
1
22
Sep 2021
21
10
0
31
Oct 2021
14
39
0
53
Nov 2021
12
26
1
39
Dec 2021
17
3
1
21
Jan 2022
18
7
1
26
Feb 2022
10
5
1
16
Mar 2022
15
5
1
21
Apr 2022
15
1
1
17
May 2022
10
8
1
19
Jun 2022
9
6
0
15
Jul 2022
17
5
0
22
Aug 2022
29
8
0
37
Sep 2022
19
5
1
25
Oct 2022
46
4
1
51
Nov 2022
25
5
1
31
Dec 2022
22
4
0
26
Jan 2023
12
9
0
21
Feb 2023
19
4
1
24
Mar 2023
15
3
1
19
Apr 2023
8
6
0
14
May 2023
8
4
1
13
Jun 2023
3
3
0
6
Cumulative views and downloads
(calculated since 07 May 2019)
Month
HTML views
PDF downloads
XML downloads
May 2019
175
60
7
Jun 2019
221
70
8
Jul 2019
229
76
8
Aug 2019
248
84
8
Sep 2019
255
88
8
Oct 2019
265
99
9
Nov 2019
282
110
9
Dec 2019
301
115
9
Jan 2020
313
127
10
Feb 2020
319
132
10
Mar 2020
329
139
11
Apr 2020
345
145
11
May 2020
366
149
11
Jun 2020
379
155
11
Jul 2020
401
163
14
Aug 2020
417
169
16
Sep 2020
429
171
16
Oct 2020
444
174
17
Nov 2020
453
181
17
Dec 2020
471
187
17
Jan 2021
479
191
17
Feb 2021
492
196
17
Mar 2021
509
206
17
Apr 2021
520
210
17
May 2021
545
216
18
Jun 2021
551
223
19
Jul 2021
561
229
20
Aug 2021
575
236
21
Sep 2021
596
246
21
Oct 2021
610
285
21
Nov 2021
622
311
22
Dec 2021
639
314
23
Jan 2022
657
321
24
Feb 2022
667
326
25
Mar 2022
682
331
26
Apr 2022
697
332
27
May 2022
707
340
28
Jun 2022
716
346
28
Jul 2022
733
351
28
Aug 2022
762
359
28
Sep 2022
781
364
29
Oct 2022
827
368
30
Nov 2022
852
373
31
Dec 2022
874
377
31
Jan 2023
886
386
31
Feb 2023
905
390
32
Mar 2023
920
393
33
Apr 2023
928
399
33
May 2023
936
403
34
Jun 2023
939
406
34
Total article views: 730 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
464
253
13
730
9
10
HTML: 464
PDF: 253
XML: 13
Total: 730
BibTeX: 9
EndNote: 10
Views and downloads (calculated since 26 Jun 2018)
Month
HTML
PDF
XML
Total
Jun 2018
125
34
6
165
Jul 2018
91
15
3
109
Aug 2018
30
8
2
40
Sep 2018
7
6
0
13
Oct 2018
15
6
0
21
Nov 2018
17
9
0
26
Dec 2018
27
14
1
42
Jan 2019
28
14
0
42
Feb 2019
14
3
0
17
Mar 2019
31
10
0
41
Apr 2019
15
6
0
21
May 2019
14
3
0
17
Jun 2019
2
2
0
4
Jul 2019
3
2
0
5
Aug 2019
2
1
0
3
Sep 2019
2
1
0
3
Oct 2019
0
Nov 2019
0
Dec 2019
1
2
0
3
Jan 2020
1
0
1
Feb 2020
1
0
1
Mar 2020
1
1
0
2
Apr 2020
1
0
1
May 2020
1
0
1
Jun 2020
6
7
0
13
Jul 2020
4
14
0
18
Aug 2020
4
0
4
Sep 2020
1
0
1
Oct 2020
1
1
2
Nov 2020
3
0
3
Dec 2020
1
4
0
5
Jan 2021
1
8
0
9
Feb 2021
1
3
0
4
Mar 2021
1
0
1
Apr 2021
2
4
0
6
May 2021
2
0
2
Jun 2021
1
2
0
3
Jul 2021
5
0
5
Aug 2021
1
12
0
13
Sep 2021
1
3
0
4
Oct 2021
2
0
2
Nov 2021
3
0
3
Dec 2021
2
1
0
3
Jan 2022
4
0
4
Feb 2022
1
0
1
Mar 2022
1
2
0
3
Apr 2022
1
0
1
May 2022
1
3
0
4
Jun 2022
3
0
3
Jul 2022
3
0
3
Aug 2022
0
Sep 2022
1
1
0
2
Oct 2022
1
2
0
3
Nov 2022
2
3
0
5
Dec 2022
1
2
0
3
Jan 2023
1
1
0
2
Feb 2023
2
3
0
5
Mar 2023
3
2
0
5
Apr 2023
1
1
0
2
May 2023
3
0
3
Jun 2023
2
0
2
Cumulative views and downloads
(calculated since 26 Jun 2018)
Month
HTML views
PDF downloads
XML downloads
Jun 2018
125
34
6
Jul 2018
216
49
9
Aug 2018
246
57
11
Sep 2018
253
63
11
Oct 2018
268
69
11
Nov 2018
285
78
11
Dec 2018
312
92
12
Jan 2019
340
106
12
Feb 2019
354
109
12
Mar 2019
385
119
12
Apr 2019
400
125
12
May 2019
414
128
12
Jun 2019
416
130
12
Jul 2019
419
132
12
Aug 2019
421
133
12
Sep 2019
423
134
12
Oct 2019
423
134
12
Nov 2019
423
134
12
Dec 2019
424
136
12
Jan 2020
425
136
12
Feb 2020
426
136
12
Mar 2020
427
137
12
Apr 2020
427
138
12
May 2020
427
139
12
Jun 2020
433
146
12
Jul 2020
437
160
12
Aug 2020
437
164
12
Sep 2020
437
165
12
Oct 2020
437
166
13
Nov 2020
437
169
13
Dec 2020
438
173
13
Jan 2021
439
181
13
Feb 2021
440
184
13
Mar 2021
440
185
13
Apr 2021
442
189
13
May 2021
442
191
13
Jun 2021
443
193
13
Jul 2021
443
198
13
Aug 2021
444
210
13
Sep 2021
445
213
13
Oct 2021
445
215
13
Nov 2021
445
218
13
Dec 2021
447
219
13
Jan 2022
447
223
13
Feb 2022
448
223
13
Mar 2022
449
225
13
Apr 2022
449
226
13
May 2022
450
229
13
Jun 2022
450
232
13
Jul 2022
450
235
13
Aug 2022
450
235
13
Sep 2022
451
236
13
Oct 2022
452
238
13
Nov 2022
454
241
13
Dec 2022
455
243
13
Jan 2023
456
244
13
Feb 2023
458
247
13
Mar 2023
461
249
13
Apr 2023
462
250
13
May 2023
462
253
13
Jun 2023
464
253
13
Viewed (geographical distribution)
Total article views: 2,109 (including HTML, PDF, and XML)
Thereof 1,948 with geography defined
and 161 with unknown origin.
Total article views: 1,379 (including HTML, PDF, and XML)
Thereof 1,282 with geography defined
and 97 with unknown origin.
Total article views: 730 (including HTML, PDF, and XML)
Thereof 666 with geography defined
and 64 with unknown origin.
Total:
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Cited
6 citations as recorded by crossref.
Secular change in atmospheric Ar∕N<sub>2</sub> and its implications for ocean heat uptake and Brewer–Dobson circulation
S. Ishidoya et al.
10.5194/acp-21-1357-2021
New technique for high-precision, simultaneous measurements of CH<sub>4</sub>, N<sub>2</sub>O and CO<sub>2</sub> concentrations; isotopic and elemental ratios of N<sub>2</sub>, O<sub>2</sub> and Ar; and total air content in ice cores by wet extraction
I. Oyabu et al.
10.5194/amt-13-6703-2020
O<sub>2</sub> : CO<sub>2</sub> exchange ratio for net turbulent flux observed in an urban area of Tokyo, Japan, and its application to an evaluation of anthropogenic CO<sub>2</sub> emissions
S. Ishidoya et al.
10.5194/acp-20-5293-2020
Air–sea fluxes of greenhouse gases and oxygen in the northern Benguela Current region during upwelling events
E. Morgan et al.
10.5194/bg-16-4065-2019
Anthropogenic CO
2
Emissions Changes in an Urban Area of Tokyo, Japan, Due to the COVID‐19 Pandemic: A Case Study During the State of Emergency in April–May 2020
H. Sugawara et al.
10.1029/2021GL092600
Intercomparison of O<sub>2</sub> ∕ N<sub>2</sub> ratio scales among AIST, NIES, TU, and SIO based on a round-robin exercise using gravimetric standard mixtures
N. Aoki et al.
10.5194/amt-14-6181-2021
6 citations as recorded by crossref.
Secular change in atmospheric Ar∕N<sub>2</sub> and its implications for ocean heat uptake and Brewer–Dobson circulation
S. Ishidoya et al.
10.5194/acp-21-1357-2021
New technique for high-precision, simultaneous measurements of CH<sub>4</sub>, N<sub>2</sub>O and CO<sub>2</sub> concentrations; isotopic and elemental ratios of N<sub>2</sub>, O<sub>2</sub> and Ar; and total air content in ice cores by wet extraction
I. Oyabu et al.
10.5194/amt-13-6703-2020
O<sub>2</sub> : CO<sub>2</sub> exchange ratio for net turbulent flux observed in an urban area of Tokyo, Japan, and its application to an evaluation of anthropogenic CO<sub>2</sub> emissions
S. Ishidoya et al.
10.5194/acp-20-5293-2020
Air–sea fluxes of greenhouse gases and oxygen in the northern Benguela Current region during upwelling events
E. Morgan et al.
10.5194/bg-16-4065-2019
Anthropogenic CO
2
Emissions Changes in an Urban Area of Tokyo, Japan, Due to the COVID‐19 Pandemic: A Case Study During the State of Emergency in April–May 2020
H. Sugawara et al.
10.1029/2021GL092600
Intercomparison of O<sub>2</sub> ∕ N<sub>2</sub> ratio scales among AIST, NIES, TU, and SIO based on a round-robin exercise using gravimetric standard mixtures
N. Aoki et al.
10.5194/amt-14-6181-2021
Latest update: 09 Jun 2023
