User:Melissa Novy/Notebook/CHEM-572/2013/03/26

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* Filter more 100Ag-LMT, made on ??? for future use.
* Filter more 100Ag-LMT, made on ??? for future use.
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==Calibration Curve of [Ag<sup>+</sup>] for Silver ISE==
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* The calibration curve for [Ag<sup>+</sup>] was redone in polypropylene containers to account for the adsorption of Ag<sup>+</sup> on glassware.  AgNO<sub>3</sub> solutions made on [[User:Melissa_Novy/Notebook/CHEM-572/2013/03/19|2013/03/19]] were used and at concentrations according to the table below.  Note that the solution of concentration 1 μM AgNO<sub>3</sub> was discarded from the calibration curve, because the detection limit of the silver ISE is around 10 μM Ag<sup>+</sup>.
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<br>
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{| {{table}}
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| align="center" style="background:#f0f0f0;"|'''Initial [Ag<sup>+</sup>] [M]'''
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| align="center" style="background:#f0f0f0;"|'''Final [Ag<sup>+</sup>] [M]'''
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| align="center" style="background:#f0f0f0;"|'''log [Ag<sup>+</sup>] []'''
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| align="center" style="background:#f0f0f0;"|'''Conductivity [mV]'''
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| align="center" style="background:#f0f0f0;"|''''''
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| align="center" style="background:#f0f0f0;"|''''''
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| align="center" style="background:#f0f0f0;"|'''Average Conductivity [mV]'''
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| align="center" style="background:#f0f0f0;"|'''Standard Deviation [mV]'''
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| align="center" style="background:#f0f0f0;"|'''Corrected Conductivity [mV]'''
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|-
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| ||||||Trial 1||Trial 2||Trial 3||||||
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|-
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| 0||0||---||341.9||340.2||335.6||339.2333333||3.259345538||0
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|-
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| 0.000001||9.80392E-07||-6.008600172||328.3||329.6||331||329.6333333||1.350308607||-9.6
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|-
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| 0.00001||9.80392E-06||-5.008600172||328.5||330.6||329.4||329.5||1.053565375||-9.733333333
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|-
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| 0.0001||9.80392E-05||-4.008600172||357.2||359.2||359.5||358.6333333||1.250333289||19.4
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|-
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| 0.001||0.000980392||-3.008600172||417.6||417.1||416.6||417.1||0.5||77.86666667
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|-
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| 0.01||0.009803922||-2.008600172||472.8||473.3||473.6||473.2333333||0.404145188||134
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|-
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| 0.1||0.098039216||-1.008600172||527.2||527.5||528||527.5666667||0.404145188||188.3333333
|}
|}
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[[Image:Ag%2B_Calibration_Curve_3-26-2013.jpg]]
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__NOTOC__
__NOTOC__

Revision as of 23:10, 26 March 2013

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Objectives

  • Continue silver ISE studies for the determination of Ag+ in solution.
  • Filter more 100Ag-LMT, made on ??? for future use.


Calibration Curve of [Ag+] for Silver ISE

  • The calibration curve for [Ag+] was redone in polypropylene containers to account for the adsorption of Ag+ on glassware. AgNO3 solutions made on 2013/03/19 were used and at concentrations according to the table below. Note that the solution of concentration 1 μM AgNO3 was discarded from the calibration curve, because the detection limit of the silver ISE is around 10 μM Ag+.


Initial [Ag+] [M] Final [Ag+] [M] log [Ag+] [] Conductivity [mV] ' ' Average Conductivity [mV] Standard Deviation [mV] Corrected Conductivity [mV]
Trial 1Trial 2Trial 3
00---341.9340.2335.6339.23333333.2593455380
0.0000019.80392E-07-6.008600172328.3329.6331329.63333331.350308607-9.6
0.000019.80392E-06-5.008600172328.5330.6329.4329.51.053565375-9.733333333
0.00019.80392E-05-4.008600172357.2359.2359.5358.63333331.25033328919.4
0.0010.000980392-3.008600172417.6417.1416.6417.10.577.86666667
0.010.009803922-2.008600172472.8473.3473.6473.23333330.404145188134
0.10.098039216-1.008600172527.2527.5528527.56666670.404145188188.3333333

Image:Ag+_Calibration_Curve_3-26-2013.jpg



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