Micro titration device and its application to rice freshness measurement

X. L. Qiu; Fumihiro Sassa; D. Itoh; T. Satake; H. Suzuki

doi:10.1109/TRANSDUCERS.2011.5969269

Micro titration device and its application to rice freshness measurement

X. L. Qiu, Fumihiro Sassa, D. Itoh, T. Satake, H. Suzuki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

A plug-based on-chip titration device, constructed with a glass substrate and a poly (dimethylsiloxane) (PDMS) substrate, was used for acid-base titration. The device features a volume-regulation unit to produce plugs of a uniform volume used for titration. Although the volume of plugs formed by only injecting a solution and air simultaneously from a T-junction distributed in a wide range, the plug volume became markedly uniform using the volume-regulation unit. Acid-base titration could be conducted using this device. Furthermore, freshness of rice was evaluated by titrating fatty acid in a rice grain with a KOH solution using phenolphthalein as a pH-indicator. Rice samples harvested in different years and from different areas as well as of different species were analyzed using this device. Difference was observed clearly in the titration curves. New rice showed a color change at an early stage, whereas the color change delayed with aged rice.

Original language	English
Title of host publication	2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Pages	2291-2294
Number of pages	4
DOIs	https://doi.org/10.1109/TRANSDUCERS.2011.5969269
Publication status	Published - 2011
Externally published	Yes
Event	2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China Duration: Jun 5 2011 → Jun 9 2011

Other

Other	2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Country/Territory	China
City	Beijing
Period	6/5/11 → 6/9/11

All Science Journal Classification (ASJC) codes

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/TRANSDUCERS.2011.5969269

Cite this

Qiu, XL, Sassa, F, Itoh, D, Satake, T & Suzuki, H 2011, Micro titration device and its application to rice freshness measurement. in 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11., 5969269, pp. 2291-2294, 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11, Beijing, China, 6/5/11. https://doi.org/10.1109/TRANSDUCERS.2011.5969269

@inproceedings{7df3554e796e460dba9e412e82440297,

title = "Micro titration device and its application to rice freshness measurement",

abstract = "A plug-based on-chip titration device, constructed with a glass substrate and a poly (dimethylsiloxane) (PDMS) substrate, was used for acid-base titration. The device features a volume-regulation unit to produce plugs of a uniform volume used for titration. Although the volume of plugs formed by only injecting a solution and air simultaneously from a T-junction distributed in a wide range, the plug volume became markedly uniform using the volume-regulation unit. Acid-base titration could be conducted using this device. Furthermore, freshness of rice was evaluated by titrating fatty acid in a rice grain with a KOH solution using phenolphthalein as a pH-indicator. Rice samples harvested in different years and from different areas as well as of different species were analyzed using this device. Difference was observed clearly in the titration curves. New rice showed a color change at an early stage, whereas the color change delayed with aged rice.",

author = "Qiu, {X. L.} and Fumihiro Sassa and D. Itoh and T. Satake and H. Suzuki",

year = "2011",

doi = "10.1109/TRANSDUCERS.2011.5969269",

language = "English",

isbn = "9781457701573",

pages = "2291--2294",

booktitle = "2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11",

note = "2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 ; Conference date: 05-06-2011 Through 09-06-2011",

}

TY - GEN

T1 - Micro titration device and its application to rice freshness measurement

AU - Qiu, X. L.

AU - Sassa, Fumihiro

AU - Itoh, D.

AU - Satake, T.

AU - Suzuki, H.

PY - 2011

Y1 - 2011

N2 - A plug-based on-chip titration device, constructed with a glass substrate and a poly (dimethylsiloxane) (PDMS) substrate, was used for acid-base titration. The device features a volume-regulation unit to produce plugs of a uniform volume used for titration. Although the volume of plugs formed by only injecting a solution and air simultaneously from a T-junction distributed in a wide range, the plug volume became markedly uniform using the volume-regulation unit. Acid-base titration could be conducted using this device. Furthermore, freshness of rice was evaluated by titrating fatty acid in a rice grain with a KOH solution using phenolphthalein as a pH-indicator. Rice samples harvested in different years and from different areas as well as of different species were analyzed using this device. Difference was observed clearly in the titration curves. New rice showed a color change at an early stage, whereas the color change delayed with aged rice.

AB - A plug-based on-chip titration device, constructed with a glass substrate and a poly (dimethylsiloxane) (PDMS) substrate, was used for acid-base titration. The device features a volume-regulation unit to produce plugs of a uniform volume used for titration. Although the volume of plugs formed by only injecting a solution and air simultaneously from a T-junction distributed in a wide range, the plug volume became markedly uniform using the volume-regulation unit. Acid-base titration could be conducted using this device. Furthermore, freshness of rice was evaluated by titrating fatty acid in a rice grain with a KOH solution using phenolphthalein as a pH-indicator. Rice samples harvested in different years and from different areas as well as of different species were analyzed using this device. Difference was observed clearly in the titration curves. New rice showed a color change at an early stage, whereas the color change delayed with aged rice.

UR - http://www.scopus.com/inward/record.url?scp=80052132574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052132574&partnerID=8YFLogxK

U2 - 10.1109/TRANSDUCERS.2011.5969269

DO - 10.1109/TRANSDUCERS.2011.5969269

M3 - Conference contribution

AN - SCOPUS:80052132574

SN - 9781457701573

SP - 2291

EP - 2294

BT - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

T2 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

Y2 - 5 June 2011 through 9 June 2011

ER -

Micro titration device and its application to rice freshness measurement

Abstract

Other

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this