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char = f;code = 102
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char = ;code = 32
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char = e;code = 101
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char = z;code = 122
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char = e;code = 101
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char = e;code = 101
char = x;code = 120
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char = a;code = 97
char = c;code = 99
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = .;code = 46
result sql = Extractive separation and determination of chromium in tannery effluents and electroplating waste water using tribenzylamine as the extractant.
Extractive separation and determination of chromium in tannery effluents and electroplating waste water using tribenzylamine as the extractant.
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char = e;code = 101
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char = r;code = 114
char = a;code = 97
char = c;code = 99
char = t;code = 116
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char = v;code = 118
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char = a;code = 97
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char = a;code = 97
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char = o;code = 111
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char = e;code = 101
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char = d;code = 100
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char = e;code = 101
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char = h;code = 104
char = e;code = 101
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char = e;code = 101
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char = f;code = 102
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char = C;code = 67
char = r;code = 114
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char = V;code = 86
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char = t;code = 116
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char = w;code = 119
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char = h;code = 104
char = ;code = 32
char = t;code = 116
char = r;code = 114
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char = (;code = 40
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char = B;code = 66
char = A;code = 65
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char = H;code = 72
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char = u;code = 117
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char = s;code = 115
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = i;code = 105
char = k;code = 107
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
result sql = A simple extractive separation method has been developed for the determination of chromium based on the extraction of Cr (VI) as its ion-pair with tribenzylamine (TBA). The ion-pair is extracted at acidic pH using toluene as the diluent. The concentration of chromium in the organic phase was measured spectrophotometrically at 309 nm. The influence of experimental variables such as pH, sample volume, equilibration time, diverse ions etc. has been studied in detail. The extracted chromium (VI) could be stripped to the aqueous phase using NaOH as the stripping agent. The extracts were characterized using FT-IR spectroscopy. A detection limit of 0.08 microg mL(-1) could be achieved and the validity of the method was checked in real tannery effluent, electroplating waste water and spiked water samples.

Publication: J. Hazard. Mater. 2009 Jun 15 ;165(1-3)::886-92. :doi: 10.1016/j.jhazmat.2008.10.122.
Publication Date: 2009 Jun 15
Study Author(s): Kalidhasan, S;Ganesh, M;Sricharan, S;Rajesh, N;
Institution: Chemistry group, Birla Institute of Technology and Science, Pilani, India.
Shortcut link to this study:
A simple extractive separation method has been developed for the determination of chromium based on the extraction of Cr (VI) as its ion-pair with tribenzylamine (TBA). The ion-pair is extracted at acidic pH using toluene as the diluent. The concentration of chromium in the organic phase was measured spectrophotometrically at 309 nm. The influence of experimental variables such as pH, sample volume, equilibration time, diverse ions etc. has been studied in detail. The extracted chromium (VI) could be stripped to the aqueous phase using NaOH as the stripping agent. The extracts were characterized using FT-IR spectroscopy. A detection limit of 0.08 microg mL(-1) could be achieved and the validity of the method was checked in real tannery effluent, electroplating waste water and spiked water samples.
PMID: 19135302

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