4,4´-Bis(dimethylamino)thiobenzophenone as Reagent for Mercury and Certain Other Metals

Gehauf, Bernard.; Goldenson, Jerome

doi:10.1021/ac60039a038

Cited by 17 publications

(5 citation statements)

References 2 publications

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“…Reaksi antara ion Hg 2+ dengan thio Michler's ketone (4,4'-Bis(dimethylamino) thio-benzophenone) pertamakali ditemukan pada tahun 1949 oleh Gehauf dan Goldenson [7]. Hal tersebut menjadi dasar dalam penyusunan metode analisis merkuri sebagaimana dilaporkan oleh Niazi dan tim penelitinya [8].…”

Section: Pendahuluanunclassified

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

Sukib¹,

Mutiah²

2016

J. Pijar MIPA

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Abstrak. Telah dilakukan penelitian tentang penyusunan metode analisis merkuri melalui pembentukan senyawa kompleks dengan 4,4'-Bis(dimethylamino)thio-benzophenone TMK. Senyawa kompleks tersebut berwarna biru kehijauan yang dapat dideteksi dengan spektrofoto-meter pada kondisi: max 574 nm; pH 3; konsentrasi TMK 0,0002 M, dan waktu tunggu selama 4-10 menit. perbandingan volume pereaksi: Hg(II), bufer pH 3, TMK 0,002 M, H2O bebas ion adalah 1:1:1:7. Dari hasil penelitian menunjukkan bahwa metode ini telah memenuhi validitas, yaitu: linieritas 0,05-2,0 mg/L, limit deteksi 0,008 mg/L, dan % recovery antara 98% -102%. Gangguan matriks akibat adanya ion-ion Au(III), Ag(I), Pd(II), Cu(II), Co(II), dan Fe(II) dapat dieliminasi dengan metode ekstraksi pelarut dan adisi standar. Metode adisi standar terbukti mampu memberikan data hasil pengukuran yang dapat dipercaya pada  5%, yaitu untuk sampel buatan sebesar (0,053  0,001) mg/L, air sungai (0,034  0,004) mg/L, dan sedimen sebesar (4,172  0,050) mg/kg. Dari hasil penelitian ini dapat disimpulkan bahwa metode ekstraksi pelarut dan adisi standar mampu mengeliminasi gangguan matriks pada analisis merkuri sebagai kompleks Hg-TMK secara spektrofotometri Kata kunci: Metode analisis merkuri, Thio Michler's keton, eliminasi, gangguan matriksAbstract. A research of analysis method for determination of mercury through formation of complex with 4,4'-bis(dimethylamino)thiobenzophenone TMK has been conducted. The green blue complex compound can be detected with spectrophoto-meter in conditions: max 574 nm, buffer acetate pH 3, concentration of TMK 0,0002 M, and the absorbance of complex remains stable for 4-10 minutes. The formula of reagents volume for: Hg(II): buffer acetate pH 3: TMK 0,002 M : de-ionized water is 1:1:1:7. This method is valid, with parameters such as linearity 0.05-2.00 mg/L, limit of detection 0.008 mg/L, and recovery in the range 98%-102%. Matrix interferences that are caused by Au(III), Ag(I), Pd(II), Cu(II), Co(II), and Fe(III) ions can be eliminated with solvent extraction and standard addition methods. Standard addition method is able to give data of trusty measurement result at  5%, that is for synthesis sample as (0.053  0.001) mg/L, river water (0.034  0.004) mg/L, and for sediment (4.172  0.050) mg/kg. From the result of this research, it can be concluded that solvent extraction and standard addition methods are able to eliminated matrix interferences in mercury analysis as Hg-TMK complex spectrophotometrically

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Section: Pendahuluanunclassified

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

Sukib¹,

Mutiah²

2016

J. Pijar MIPA

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“…Copper(II) Indicator. Take for analysis a sample that contains between 4 and 25 mg. of mercury. Dilute with water and acetone, so that the volume is between 50 and 100 ml.…”

Section: Reagents and Solutionsmentioning

confidence: 99%

“…Add 1 drop of Thiomichler's ketone solution and titrate with dithiocarbamate, taking the color change from blue to clear yellow as the end point. 4. Ion Exchange Procedure.…”

Section: Reagents and Solutionsmentioning

confidence: 99%

Titration of Mercury with Bis(2-hydroxyethyl)dithiocarbamate

Fritz¹,

Sutton²

1956

Anal. Chem.

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“…Gehauf and Goldenson (20) These cations are titrated coulometrically using electrolytically generated mercaptoacetic acid.…”

Section: Detection Of the End Pointmentioning

confidence: 99%

“…The titration of mercaptans was followed at a wave length of 580 m^, which is the wave length of maximum absorbance for the thio-Michler*s ketone-mercury(II) complex (20 All other chemicals were reagent grade or equivalent.…”

Section: Detection Of the End Pointmentioning

confidence: 99%

I Determination of mercaptans II Ion exchange separations using sulfosalicylic acid

Palmer

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4,4´-Bis(dimethylamino)thiobenzophenone as Reagent for Mercury and Certain Other Metals

Cited by 17 publications

References 2 publications

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

Titration of Mercury with Bis(2-hydroxyethyl)dithiocarbamate

I Determination of mercaptans II Ion exchange separations using sulfosalicylic acid

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4,4´-Bis(dimethylamino)thiobenzophenone as Reagent for Mercury and Certain Other Metals

Cited by 17 publications

References 2 publications

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

Titration of Mercury with Bis(2-hydroxyethyl)dithiocarbamate

I Determination of mercaptans II Ion exchange separations using sulfosalicylic acid

Contact Info

Product

Resources

About

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI

ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI