JP5022942B2 - 6価クロム簡易定量法 - Google Patents
6価クロム簡易定量法 Download PDFInfo
- Publication number
- JP5022942B2 JP5022942B2 JP2008040486A JP2008040486A JP5022942B2 JP 5022942 B2 JP5022942 B2 JP 5022942B2 JP 2008040486 A JP2008040486 A JP 2008040486A JP 2008040486 A JP2008040486 A JP 2008040486A JP 5022942 B2 JP5022942 B2 JP 5022942B2
- Authority
- JP
- Japan
- Prior art keywords
- hexavalent chromium
- test solution
- sample
- phosphoric acid
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 title claims description 49
- 239000012085 test solution Substances 0.000 claims description 56
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000004445 quantitative analysis Methods 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 42
- 239000000523 sample Substances 0.000 description 33
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 18
- 238000002845 discoloration Methods 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- KSPIHGBHKVISFI-UHFFFAOYSA-N Diphenylcarbazide Chemical compound C=1C=CC=CC=1NNC(=O)NNC1=CC=CC=C1 KSPIHGBHKVISFI-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000010828 elution Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000013074 reference sample Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- AOZICBYUDGLNHS-UHFFFAOYSA-N chromium 1-imino-3-(N-phenylanilino)urea Chemical compound [Cr].C=1C=CC=CC=1N(NC(=O)N=N)C1=CC=CC=C1 AOZICBYUDGLNHS-UHFFFAOYSA-N 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Description
試料は、鉄(または鉄系合金)からなる母材上に鉄の防錆としての亜鉛めっき、さらにその上に亜鉛めっきの防錆としての化成処理皮膜が形成された部品を用いる。
テスト溶液は、変色剤と、有機溶剤と、酸と、水とから構成されている。変色剤としてはジフェニルカルバジドを用い、有機溶剤としてはアセトン、エタノールを用い、酸としてはリン酸を用いる。複数のテスト溶液としては、ジフェニルカルバジド(0.4g)、アセトン(20ml)、エタノール(20ml)が混合された混合液に対して、0.3ml,0.05ml,0.03ml,0.005mlと異なる量のリン酸を混合させ、水によって全量を同一(80ml)にしたリン酸の体積(容量)濃度が0.375%テスト溶液、0.0625%テスト溶液、0.0375%テスト溶液、0.00625%テスト溶液を用いる。なお、テスト溶液の混合はジフェニルカルバジド、アセトン、エタノール、リン酸または水の順で混合させ、テスト溶液の使用期限は調製後8時間としている(ISO3613参照)。
温水(沸騰水)中に試料を浸漬し皮膜中の成分を温水中に取り出す温水抽出により、6価クロムの含有量の測定結果が0.02μg/cm2,0.06μg/cm2,0.09μg/cm2とそれぞれ異なる基準試料を用いる。
試料中に6価クロムが含まれる場合は、6価クロムとジフェニルカルバジドとが反応してクロム−ジフェニルカルバゾン錯体を形成する。この錯体形成に要する時間は反応溶液のpHにより変化する(詳細にはpHが高いと反応に要する時間が長くなる)。この反応溶液のpHは、酸濃度によって変えることができる。また、変色(発色)反応が進行している段階のある時間において、pHの低い反応溶液とpHの高い反応溶液とでは、両者の間に発色強度の差が生じる。つまり、ある反応時間において、pHの違いにより発色している状態と発色していない状態を作り出すことができる。このことから、テスト溶液の酸濃度を変えることにより、6価クロムの検出力を変化させることができる。
測定の結果を図1に示す。なお、図中に示す○は目視でテスト溶液の変色を確認できたものを示し、×は目視でテスト溶液の変色を確認できなかったものを示す。
まず、リン酸含有量の最も多い0.0375%テスト溶液を試料に接触させ、テスト溶液の変色を観測する。次に、テスト溶液に変色がある場合には次にリン酸含有量が多い0.0625%テスト溶液を試料に接触させ、テスト溶液の変色を観測する。このような操作をリン酸含有量の最も多いテスト溶液からリン酸含有量の少ないテスト溶液へテスト溶液の変色が観測されなくなるまで順次繰り返す。
Claims (1)
- 6価クロムと反応して変色する変色剤をそれぞれが含み、試料を溶解させるリン酸の含有量がそれぞれ異なる複数のテスト溶液を、前記試料に別々に接触させ、前記テスト溶液の変色を検出し、前記試料に含まれる6価クロムの含有量範囲を特定することを特徴とする6価クロム簡易定量法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008040486A JP5022942B2 (ja) | 2008-02-21 | 2008-02-21 | 6価クロム簡易定量法 |
PCT/JP2009/052534 WO2009104551A1 (ja) | 2008-02-21 | 2009-02-16 | 6価クロム簡易定量法 |
US12/918,431 US8093059B2 (en) | 2008-02-21 | 2009-02-16 | Method for simply quantitatively determining hexavalent chromium technical field |
PT2009052534A PT2009104551W (pt) | 2008-02-21 | 2009-02-16 | Método para determinar quantitativamente de um modo simples crómio hexavalente |
CN2009801055511A CN101946177B (zh) | 2008-02-21 | 2009-02-16 | 简单地定量测定六价铬的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008040486A JP5022942B2 (ja) | 2008-02-21 | 2008-02-21 | 6価クロム簡易定量法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009198326A JP2009198326A (ja) | 2009-09-03 |
JP5022942B2 true JP5022942B2 (ja) | 2012-09-12 |
Family
ID=40985432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008040486A Expired - Fee Related JP5022942B2 (ja) | 2008-02-21 | 2008-02-21 | 6価クロム簡易定量法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8093059B2 (ja) |
JP (1) | JP5022942B2 (ja) |
CN (1) | CN101946177B (ja) |
PT (1) | PT2009104551W (ja) |
WO (1) | WO2009104551A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102147372A (zh) * | 2011-01-16 | 2011-08-10 | 首钢总公司 | 一种电工钢涂层中游离铬的检测方法 |
US9310310B2 (en) | 2011-08-26 | 2016-04-12 | 3M Innovative Properties Company | Flowable dry powder composition |
CN102721660A (zh) * | 2011-09-02 | 2012-10-10 | 仲恺农业工程学院 | 一种电镀钝化液类复杂样品中Cr6+的新型测定方法 |
KR101290508B1 (ko) | 2011-10-28 | 2013-07-26 | 현대제철 주식회사 | 6가 크롬 분석용 시험지 및 그 제조 방법 |
CN102519948B (zh) * | 2011-11-24 | 2014-05-07 | 中国科学院宁波材料技术与工程研究所 | 一种六价铬离子的检测方法 |
JP5880328B2 (ja) * | 2012-07-23 | 2016-03-09 | 東亜ディーケーケー株式会社 | クロム測定試薬及びクロム測定方法 |
DE102013218448A1 (de) * | 2013-09-13 | 2015-03-19 | Schülke & Mayr GmbH | Methode zur Bestimmung der Reinigungsleistung von Formulierungen |
CN104792777A (zh) * | 2015-01-16 | 2015-07-22 | 深圳市环境科学研究院 | 一种经济快捷型比色测定水质六价铬浓度的测试包和测定方法 |
KR101730801B1 (ko) | 2015-08-03 | 2017-04-28 | 한국과학기술연구원 | 크기가 제어된 비표지 금 나노입자를 이용한 6가 크롬 이온 검출용 선택적 비색검출센서 및 비색검출방법 |
CN106769916A (zh) * | 2016-11-23 | 2017-05-31 | 上海仪电科学仪器股份有限公司 | 一种水中六价铬测定方法 |
US11592414B2 (en) | 2018-02-27 | 2023-02-28 | University Of Massachusetts | Electrochemical sensor for detection and quantification of heavy metals |
NL2025350B1 (en) * | 2020-04-15 | 2021-10-26 | Matinspired B V | Chromium VI test |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5330917A (en) * | 1989-02-02 | 1994-07-19 | Hybrivet Systems, Inc. | Test swab device and method of detecting lead, mercury, arsenic, and bismuth |
CN1062211A (zh) * | 1991-12-12 | 1992-06-24 | 岳阳市南区环境保护局 | 离子塑料监测卡及其快速监测六价铬的方法 |
US6420181B1 (en) * | 1996-12-11 | 2002-07-16 | The United States Of America As Represented By The Secretary Of The Army | Field microspot test method for on-site chemical testing |
US6787366B1 (en) * | 1996-12-11 | 2004-09-07 | The United States Of America As Represented By The Secretary Of The Army | Microspot test kit and method for chemical testing |
JP3700742B2 (ja) * | 1997-05-30 | 2005-09-28 | 栗田工業株式会社 | 6価クロムの測定方法 |
JP2003172696A (ja) * | 2001-12-06 | 2003-06-20 | Toyota Motor Corp | 六価クロムの定量方法 |
JP4118921B2 (ja) * | 2005-04-19 | 2008-07-16 | 株式会社Rstプロジェクト | クロム検出用試薬 |
US20070087439A1 (en) | 2005-10-13 | 2007-04-19 | Michael Riess | Method of measuring hexavalent chromium in electronic components and assemblies |
JP4675219B2 (ja) | 2005-11-16 | 2011-04-20 | 富士通株式会社 | 検知体 |
-
2008
- 2008-02-21 JP JP2008040486A patent/JP5022942B2/ja not_active Expired - Fee Related
-
2009
- 2009-02-16 WO PCT/JP2009/052534 patent/WO2009104551A1/ja active Application Filing
- 2009-02-16 PT PT2009052534A patent/PT2009104551W/pt unknown
- 2009-02-16 US US12/918,431 patent/US8093059B2/en not_active Expired - Fee Related
- 2009-02-16 CN CN2009801055511A patent/CN101946177B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101946177B (zh) | 2012-04-18 |
CN101946177A (zh) | 2011-01-12 |
PT2009104551W (pt) | 2011-02-11 |
US20110008898A1 (en) | 2011-01-13 |
JP2009198326A (ja) | 2009-09-03 |
WO2009104551A1 (ja) | 2009-08-27 |
US8093059B2 (en) | 2012-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5022942B2 (ja) | 6価クロム簡易定量法 | |
Abu-Shawish | A mercury (II) selective sensor based on N, N′-bis (salicylaldehyde)-phenylenediamine as neutral carrier for potentiometric analysis in water samples | |
CN102374984B (zh) | 采用分光光度法测定低合金钢中镍含量的方法 | |
EP2811297A1 (en) | Means for detecting oxygen free radicals in human body | |
Ghaedi et al. | A novel PVC-membrane optical sensor for high sensitive and selective determination of Cu2+ ion based on synthesized (E)-N′-(pyridin-2-ylmethylene) isonicotin-ohydrazide | |
Suah et al. | A novel polymer inclusion membranes based optode for sensitive determination of Al3+ ions | |
Elbashir et al. | New spectrophotometric methods for the determination of moxifloxacin in pharmaceutical formulations. | |
Zare-Dorabei et al. | Design of a novel optical sensor for determination of trace gadolinium | |
Rouis et al. | Characterization of a sensitive and selective copper optode based on β-ketoimine modified calix [4] arene derivative | |
Li et al. | Resonance Rayleigh scattering and resonance nonlinear scattering methods for the determination of nicardipine hydrochloride using eosin Y as a probe | |
JP2014052369A (ja) | 金属の簡易検出方法 | |
Saadeh et al. | A new potentiometric thiosalicylamide-functionalized polysiloxane carbon paste electrode for lead (II) determination | |
Liu et al. | Design of a highly sensitive fluorescent sensor and its application based on inhibiting NaIO 4 oxidizing rhodamine 6G | |
Najlaoui et al. | Development of a selective and highly sensitive optical chemical sensor for determination of sulfaguanidine based on a novel mixed isopolymolybdates | |
KR100268596B1 (ko) | 침투탐상 시험방법에 이용하는 고감도 침투액 | |
Chen et al. | Label-free fluorescence turn on detection of tiopronin with tunable dynamic range based on the ensemble of Alizarin Red S/copper ion | |
JP2018538242A (ja) | 酢酸塩錯体および酢酸塩定量法 | |
Sorte et al. | Development of a modified copper-cadmium reduction method for rapid assay of total nitric oxide | |
Arida | Novel PVC membrane-based thoron ion selective electrode and its application: determination of zirconium | |
Zhitenko | State of the art and problems in determining high gold contents in alloys and articles | |
Idriss et al. | Determination of strontium and simultaneous determination of strontium oxide, magnesium oxide and calcium oxide content of Portland cement by derivative ratio spectrophotometry | |
CN113466226A (zh) | 检测芝麻油纯度的试纸、制备方法及检测方法 | |
JP2005098760A (ja) | 鉛イオン選択性呈色材及び該呈色材を用いた鉛イオン簡易定量方法 | |
Gavrilenko et al. | Colorimetric polymethacrylate sensor | |
El-Didamony | Application of brominating agents and potassium dichromate for the spectrophotometric determination of captopril in pharmaceutical formulations |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20101227 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120321 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120514 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120605 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120618 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150622 Year of fee payment: 3 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |