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1

Investigation of iodine liberation process in redox titration of potassium iodate with sodium thiosulfate

Toshiaki Asakai, Akiharu Hioki

Journal:

Analytica Chimica Acta

Year:

2011

Language:

english

File:

PDF, 556 KB

english, 2011

2

Precise coulometric titration of sodium thiosulfate and development of potassium iodate as a redox standard

Toshiaki Asakai, Mariko Murayama, Tatsuhiko Tanaka

Journal:

Year:

2007

Language:

english

File:

PDF, 390 KB

english, 2007

3

Assay of high-purity sodium oxalate traceable to the international system of units by coulometric titration and gravimetric titration

Asakai, Toshiaki, Hioki, Akiharu

Journal:

Microchemical Journal

Year:

2013

Language:

english

File:

PDF, 596 KB

english, 2013

4

Precise coulometric titration of cerium(iv) as an oxidising agent with electrogenerated iron(ii) and reliability in cerium(iv) standardisation with sodium thiosulfate

Asakai, Toshiaki, Hioki, Akiharu

Journal:

Analytical Methods

Year:

2012

Language:

english

File:

PDF, 307 KB

english, 2012

5

New Japanese certified reference materials for electrolytic conductivity measurements

Toshiaki Asakai,Igor Maksimov,Sachiko Onuma…

Journal:

Accreditation and Quality Assurance

Year:

2017

Language:

english

File:

PDF, 1011 KB

english, 2017

6

Consideration in potential titration paths to assay osmium compounds: toward the establishment of the mono-elemental standard solution

Asakai, Toshiaki

Journal:

Accreditation and Quality Assurance

Year:

2020

File:

PDF, 712 KB

2020

7

Evaluation of certified reference materials for oxidation–reduction titration by precise coulometric titration and volumetric analysis

Toshiaki Asakai, Yoshihiro Kakihara, Yasuharu Kozuka, Sadao Hossaka, Mariko Murayama, Tatsuhiko Tanaka

Journal:

Analytica Chimica Acta

Year:

2006

Language:

english

File:

PDF, 269 KB

english, 2006

8

Determination of the purity of acidimetric standards by constant-current coulometry, and the intercomparison between CRMs

Toshiaki Asakai, Mariko Murayama, Tatsuhiko Tanaka

Journal:

Accreditation and Quality Assurance

Year:

2007

Language:

english

File:

PDF, 227 KB

english, 2007

9

Scheme and studies of reference materials for volumetric analysis in Japan

Toshiaki Asakai, Mariko Murayama

Journal:

Accreditation and Quality Assurance

Year:

2008

Language:

english

File:

PDF, 213 KB

english, 2008

10

Investigation on drying conditions and assays of amidosulfuric acid and sodium carbonate by acidimetric coulometric titration and gravimetric titration

Toshiaki Asakai, Akiharu Hioki

Journal:

Accreditation and Quality Assurance

Year:

2010

Language:

english

File:

PDF, 292 KB

english, 2010

11

Comparison of three electrochemical end-point detection methods to assay potassium dichromate by coulometric titration

Toshiaki Asakai, Akiharu Hioki

Journal:

Accreditation and Quality Assurance

Year:

2012

Language:

english

File:

PDF, 299 KB

english, 2012

12

Temporal stability of standard potentials of silver–silver chloride reference electrodes

Igor Maksimov, Masaki Ohata, Toshiaki Asakai, Toshihiro Suzuki, Tsutomu Miura, Akiharu Hioki, Koichi Chiba

Journal:

Accreditation and Quality Assurance

Year:

2012

Language:

english

File:

PDF, 291 KB

english, 2012

13

Potassium bromate assay by primary methods through iodine liberation reaction

Asakai, Toshiaki, Hioki, Akiharu

Journal:

Analytical Methods

Year:

2013

Language:

english

File:

PDF, 249 KB

english, 2013

14

Certification of water content in NMIJ CRM 4222-a, water standard solution 0.1 mg g−1, by coulometric and volumetric Karl Fischer titration

Inagaki, Shinsuke, Asakai, Toshiaki, Numata, Masahiko, Hanari, Nobuyasu, Ishikawa, Keiichiro, Kitanaka, Kouji, Hagiwara, Masaharu, Kotaki, Shuichi

Journal:

Analytical Methods

Year:

2014

Language:

english

File:

PDF, 265 KB

english, 2014

15

SI traceable assay of periodate compounds

Asakai, Toshiaki, Hioki, Akiharu

Journal:

Accreditation and Quality Assurance

Year:

2014

Language:

english

File:

PDF, 699 KB

english, 2014

16

Congress, conferences, workshops and courses

Asakai, Toshiaki, Hioki, Akiharu

Journal:

Accreditation and Quality Assurance

Year:

2014

Language:

english

File:

PDF, 69 KB

english, 2014

17

Certified reference material for ammonium ions in high-purity ammonium chloride: Influence of pH on coulometric titration of ammonium ions with electrogenerated hypobromite

Asakai, Toshiaki, Suzuki, Toshihiro, Miura, Tsutomu, Hioki, Akiharu

Journal:

Microchemical Journal

Year:

2014

Language:

english

File:

PDF, 810 KB

english, 2014

18

Controlling Packing Structure of Hydrophobic Alkyl Tails of Monolayered Films of Ion-Paired Macrocyclic Amphiphiles as Studied by Sum-Frequency Generation Spectroscopy

Onda, Ken, Nakagawa, Masaru, Asakai, Toshiaki, Watase, Reiko, Wada, Akihide, Ichimura, Kunihiro, Hirose, Chiaki

Journal:

Journal of Physical Chemistry B

Year:

2002

Language:

english

File:

PDF, 79 KB

english, 2002

19

Report of the key comparison APMP.QM-K19. APMP comparison on pH measurement of borate buffer

Hioki, Akiharu, Asakai, Toshiaki, Maksimov, Igor, Suzuki, Toshihiro, Miura, Tsutomu, Obromsook, Krairerk, Tangpaisarnkul, Nongluck, Rodruangthum, Patumporn, Wong, Siu-Kay, Lam, Wai-Hing, Zakaria, Osma

Journal:

Year:

2015

Language:

english

File:

PDF, 5.77 MB

english, 2015

20

Final report on key comparison CCQM-K96: Determination of amount content of dichromate

Máriássy, Michal, Hanková, Zuzana, Hwang, Euijin, Lim, Youngran, Pratt, Kenneth W, Hioki, Akiharu, Asakai, Toshiaki, Bing, Wu, Liandi, Ma, Chao, Wei, Sobina, Alena, Shimolin, Alexandr, Junior, Wiler B

Journal:

Year:

2013

Language:

english

File:

PDF, 691 KB

english, 2013

21

Reliability in standardization of sodium thiosulfate with potassium dichromate

Asakai, Toshiaki, Hioki, Akiharu

Journal:

Microchemical Journal

Year:

2015

Language:

english

File:

PDF, 1.11 MB

english, 2015

22

Influence of AgCl Precipitates on the Precipitation Titration of Sodium Chloride by Constant-Current Coulometry

ASAKAI, Toshiaki, HARA, Hisao, MURAYAMA, Mariko, TANAKA, Tatsuhiko

Journal:

Analytical Sciences

Year:

2006

Language:

english

File:

PDF, 114 KB

english, 2006

23

Evaluation of the Stability of Iron(II) Solutions by Precise Coulometric Titration with Electrogenerated Cerium(IV)

ASAKAI, Toshiaki, HIOKI, Akiharu

Journal:

Analytical Sciences

Year:

2012

Language:

english

File:

PDF, 419 KB

english, 2012

24

Investigation of Drying Conditions for High-Purity Sodium Carbonate

Asakai, Toshiaki, Ogura, Tatsunori, Murayama, Mariko, Tanaka, Tatsuhiko

Journal:

Year:

2008

File:

PDF, 709 KB

2008

25

Investigation of the Drying Conditions for Amidosulfuric Acid

ASAKAI, Toshiaki, MINEGISHI, Ryota, INABA, Norie, ISHIMURA, Yutaka, MURAYAMA, Mariko, TANAKA, Tatsuhiko

Journal:

Analytical Sciences

Year:

2006

Language:

english

File:

PDF, 130 KB

english, 2006

26

Chlorate ion standard solution established by multipath titration techniques

Asakai, Toshiaki

Journal:

Microchemical Journal

Year:

2018

Language:

english

File:

PDF, 1.11 MB

english, 2018

27

High-throughput and precise measurement method for electrolytic conductivity in a higher conductivity range (10 S m−1 to 0.1 S m−1) by chromatography system with conductivity detector

Asakai, Toshiaki, Yamauchi, Yoshiyasu, Suzuki, Toshihiro

Journal:

Microchemical Journal

Year:

2018

Language:

english

File:

PDF, 1.04 MB

english, 2018

28

Characterization of water in methylcyclohexane as a certified reference material for determination of trace water content in liquids

Inagaki, Shinsuke, Suzuki, Toshihiro, Asakai, Toshiaki, Numata, Masahiko, Hanari, Nobuyasu, Kitanaka, Kouji, Hagiwara, Masaharu, Kotaki, Shuichi

Journal:

Year:

2019

Language:

english

File:

PDF, 344 KB

english, 2019

29

Nitrogen content of amidosulfuric acid assayed by coulometric titration with electrogenerated hypobromite ions: establishment of SI traceability of nitrogen involving amidosulfuric acid, ammonium chloride and sodium chloride

Asakai, Toshiaki

Journal:

Year:

2019

Language:

english

File:

PDF, 561 KB

english, 2019

30

Perchlorate ion standard solution: multipath titrimetric approach using three different stoichiometric reactionsâtowards the establishment of SI traceable chemical standards

Asakai, Toshiaki

Journal:

Year:

2020

File:

PDF, 540 KB

2020