User:Melissa Novy/Notebook/CHEM-572/2013/03/19

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Current revision (21:53, 9 April 2013) (view source)
(ISE Study of PLA2002D + 5 wt% LMT)
 
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* Cast a 3 g film of PLA2002D + 10 wt% 100Ag-LMT.
* Cast a 3 g film of PLA2002D + 10 wt% 100Ag-LMT.
* Conduct silver ISE studies on samples of PLA2002D + 5 wt% LMT.
* Conduct silver ISE studies on samples of PLA2002D + 5 wt% LMT.
 +
* Make AgNO<sub>3</sub> calibration solutions in polypropylene Falcon tubes ranging from 1 nM to 0.1 M.
==PLA2002D + 10 wt% 100Ag-LMT Film==
==PLA2002D + 10 wt% 100Ag-LMT Film==
Line 23: Line 24:
==ISE Study of PLA2002D + 5 wt% LMT==
==ISE Study of PLA2002D + 5 wt% LMT==
-
* From a 3 g film of PLA2002D + 5 wt% LMT, made on [[User:Melissa_Novy/Notebook/CHEM-572/2013/02/19|2013/02/19]], three 0.5 g samples were cut with scissors.  Each sample was placed in a 100-mL polypropylene beaker filled with 50 mL pure H<sub>2</sub>O and 1 mL of ionic strength adjuster (ISA).  The control was a solution consisting of 50 mL pure H<sub>2</sub>O and 1 mL of ISA without a film in a polypropylene beaker.
+
* From a 3 g film of PLA2002D + 5 wt% LMT, made on [[User:Melissa_Novy/Notebook/CHEM-572/2013/02/19|2013/02/19]], three 0.5 g samples were cut with scissors.  Each sample was placed in a 100-mL polypropylene beaker filled with 50 mL pure H<sub>2</sub>O and 1 mL of [[User:Melissa_Novy/Notebook/CHEM-572/2013/02/05|ionic strength adjuster]] (ISA).  The control was a solution consisting of 50 mL pure H<sub>2</sub>O and 1 mL of ISA without a film in a polypropylene beaker.
-
* The conductivity of each solution was measured with an Accumet silver/sulfide ISE every 30 min for a period of 2 h, then again after about 24 h.
+
* The conductivity of each solution was measured with an Accumet silver/sulfide ISE every 30 min for a period of 2 h, then again after about 24 h.  The corrected conductivity of the film-soaking solutions was corrected by subtracting the conductivity of the control from that of the film-soaking solutions.
-
<br>
+
 
 +
* Conductivity of Solutions Containing PLA2002D + 5 wt% LMT
 +
{| {{table}}
 +
| align="center" style="background:#f0f0f0;"|'''Time [min]'''
 +
| align="center" style="background:#f0f0f0;"|'''Sample []'''
 +
| align="center" style="background:#f0f0f0;"|'''Conductivity [mV]'''
 +
| align="center" style="background:#f0f0f0;"|'''Average Conductivity [mV]'''
 +
| align="center" style="background:#f0f0f0;"|'''Corrected Conductivity [mV]'''
 +
|-
 +
| 0||Control||246.2||238.2||
 +
|-
 +
| ||||232.7||||
 +
|-
 +
| ||||235.7||||
 +
|-
 +
| ||1||292.1||283.5333333||45.33333333
 +
|-
 +
| ||2||284.8||||
 +
|-
 +
| ||3||273.7||||
 +
|-
 +
| 30||Control||247.9||240.0666667||
 +
|-
 +
| ||||237.6||||
 +
|-
 +
| ||||234.7||||
 +
|-
 +
| ||1||300.5||285||44.93333333
 +
|-
 +
| ||2||286.6||||
 +
|-
 +
| ||3||267.9||||
 +
|-
 +
| 60||Control||248.7||240.2666667||
 +
|-
 +
| ||||237.8||||
 +
|-
 +
| ||||234.3||||
 +
|-
 +
| ||1||263.1||258.1333333||17.86666667
 +
|-
 +
| ||2||258.5||||
 +
|-
 +
| ||3||252.8||||
 +
|-
 +
| 90||Control||243.4||236.5333333||
 +
|-
 +
| ||||234.4||||
 +
|-
 +
| ||||231.8||||
 +
|-
 +
| ||1||247.6||246.5||9.966666667
 +
|-
 +
| ||2||241.8||||
 +
|-
 +
| ||3||250.1||||
 +
|-
 +
| 120||Control||235.4||235.4666667||
 +
|-
 +
| ||||237.1||||
 +
|-
 +
| ||||233.9||||
 +
|-
 +
| ||1||240.5||231.1||-4.366666667
 +
|-
 +
| ||2||225.5||||
 +
|-
 +
| ||3||227.3||||
 +
|-
 +
| 1380 (23 h)||Control||333.5||325.4333333||
 +
|-
 +
| ||||320.5||||
 +
|-
 +
| ||||322.3||||
 +
|-
 +
| ||1||229.9||225.3666667||-100.0666667
 +
|-
 +
| ||2||218.8||||
 +
|-
 +
| ||3||227.4||||
 +
|}
 +
 
 +
==AgNO<sub>3</sub> Calibration Solutions==
 +
* Solutions of AgNO<sub>3</sub> at the following concentrations were made in polypropylene containers and with pure H<sub>2</sub>O: 1 nM, 10 nM, 100 nM, 1 μM, 10 μM, 100 μM, 1 mM, 10 mM, and 100 mM.  Please refer to the entries on [[User:Melissa_Novy/Notebook/CHEM-572/2013/02/13|2013/02/13]] and [[User:Melissa_Novy/Notebook/CHEM-572/2013/02/05|2013/02/05]] for the protocol.
-
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Objectives

  • Cast a 3 g film of PLA2002D + 10 wt% 100Ag-LMT.
  • Conduct silver ISE studies on samples of PLA2002D + 5 wt% LMT.
  • Make AgNO3 calibration solutions in polypropylene Falcon tubes ranging from 1 nM to 0.1 M.

PLA2002D + 10 wt% 100Ag-LMT Film

  • A solution of PLA2002D and 100Ag-LMT, made on 2013/03/05 was cast into a Teflon dish. Please refer to the entry on 2013/02/06 for the protocol.

ISE Study of PLA2002D + 5 wt% LMT

  • From a 3 g film of PLA2002D + 5 wt% LMT, made on 2013/02/19, three 0.5 g samples were cut with scissors. Each sample was placed in a 100-mL polypropylene beaker filled with 50 mL pure H2O and 1 mL of ionic strength adjuster (ISA). The control was a solution consisting of 50 mL pure H2O and 1 mL of ISA without a film in a polypropylene beaker.
  • The conductivity of each solution was measured with an Accumet silver/sulfide ISE every 30 min for a period of 2 h, then again after about 24 h. The corrected conductivity of the film-soaking solutions was corrected by subtracting the conductivity of the control from that of the film-soaking solutions.
  • Conductivity of Solutions Containing PLA2002D + 5 wt% LMT
Time [min] Sample [] Conductivity [mV] Average Conductivity [mV] Corrected Conductivity [mV]
0Control246.2238.2
232.7
235.7
1292.1283.533333345.33333333
2284.8
3273.7
30Control247.9240.0666667
237.6
234.7
1300.528544.93333333
2286.6
3267.9
60Control248.7240.2666667
237.8
234.3
1263.1258.133333317.86666667
2258.5
3252.8
90Control243.4236.5333333
234.4
231.8
1247.6246.59.966666667
2241.8
3250.1
120Control235.4235.4666667
237.1
233.9
1240.5231.1-4.366666667
2225.5
3227.3
1380 (23 h)Control333.5325.4333333
320.5
322.3
1229.9225.3666667-100.0666667
2218.8
3227.4

AgNO3 Calibration Solutions

  • Solutions of AgNO3 at the following concentrations were made in polypropylene containers and with pure H2O: 1 nM, 10 nM, 100 nM, 1 μM, 10 μM, 100 μM, 1 mM, 10 mM, and 100 mM. Please refer to the entries on 2013/02/13 and 2013/02/05 for the protocol.



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