MIP Response Test for Geoprobe\'s new Heated Trunline using TCE standards and PID/XSD detectors

1. Prepared by S2C2 inc.

2. Introduction
The following tests were completed
using Geoprobe’s Membrane Interface
Probe (MIP) with Heated Trunkline
( )
(HTL).
The purpose of these tests is to show
response of Photoionization detector
(
(PID) and Halogen specific detector
) g p
(XSD) over a range of trichloroethene
(TCE) concentrations.

3. Membrane Interface Probe HTL - TCE Response Test - XSD
7.00E+06
7 00E+06
Notes: 400 ppm
This graph shows XSD
Response over a range of TCE
standards with respect to
6.00E+06 time. Actual XSD response in
the field will differ from the
laboratory test due to the
l b t t t d t th 200 ppm
nature of the formation (i.e.,
matrix composition,
saturation, etc.), actual
5.00E+06
chemical constituents
present, as well as the phase
of the chemical constituents
V)
Detector Response (uV
(i.e., vapor, dissolved, solid).
(i e vapor dissolved solid) 100 ppm
4.00E+06 MIP configuration: Heated
Trunkline; PID and XSD
detector in‐line. XSD detector
set to medium sensitivity.
50 ppm
Test completed 12/10/2009.
3.00E+06
3 00E+06
25 ppm
2.00E+06
XSD (uV)
10 ppm
1.00E+06 5 ppm
500 ppb 1 ppm
pp
150 ppb
0.00E+00
0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000
Time (Seconds)

4. Peak XSD Response ‐ Trichloroethene ‐ MIP HTL
500,000
Notes:
450,000 This graph shows peak
XSD response over a
broad range of standard
concentrations. Actual
400,000 XSD response in the field
will differ from the
laboratory test due to the
350,000 nature of the formation
(i.e., matrix composition,
y = 1E‐08x2 ‐ 0.027x + 10951 saturation, etc.), actual
R² = 0.9839 chemical constituents
ug/L)
300,000 present, as well as the
CE Concentration (u
phase of the chemical
h f th h i l
constituents (i.e., vapor,
dissolved, solid).
250,000
MIP configuration: Heated
Trunkline; PID and XSD
detector in-line. XSD
200,000
,
TC
detector set to medium
sensitivity. Test
completed 12/10/2009.
150,000
Peak XSD Response
100,000
100 000
50,000
0
0.00E+00 1.00E+06 2.00E+06 3.00E+06 4.00E+06 5.00E+06 6.00E+06 7.00E+06
Peak XSD Response (uV)

5. Membrane Interface Probe HTL - TCE Response Test - PID
1.00E+07
1 00E+07
Notes:
This graph shows PID
Response over a range of TCE 400 ppm
9.00E+06
standards with respect to
time. Actual PID response in
the field will differ from the
8.00E+06
8 00 06 laboratory test due to the
l b t t t d t th
nature of the formation (i.e.,
matrix composition,
saturation, etc.), actual
7.00E+06 chemical constituents
present, as well as the phase 200 ppm
of the chemical constituents
V)
ctor Response (uV
(i.e., vapor, dissolved, solid).
(i e vapor dissolved solid)
6.00E+06
MIP configuration: Heated
Trunkline; PID and XSD
5.00E+06 detector in‐line. XSD detector
set to medium sensitivity.
Test completed 12/10/2009.
Detec
4.00E+06
100 ppm
3.00E+06
PID (uV)
50 ppm
2.00E+06
25 ppm
1.00E+06
10 ppm
500 ppb
b 1 ppm 5 ppm
0.00E+00
0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000
Time (Seconds)

6. Peak PID Response ‐ Trichloroethene ‐ MIP HTL
500,000
Notes:
450,000 This graph shows peak PID
response over a broad
range of standard
concentrations. Actual PID
400,000 response in the field will
differ from the laboratory
test due to the nature of the
350,000 formation (i.e., matrix
y = 4E‐09x2 + 0.011x + 4265.4 composition, saturation,
R² = 0.9915 etc.), actual chemical
constituents present, as
ug/L)
300,000 well as the phase of the
CE Concentration (u
chemical constituents (i
h i l tit t (i.e.,
vapor, dissolved, solid).
250,000 MIP configuration: Heated
Trunkline; PID and XSD
detector in-line. XSD
detector set to medium
200,000
,
TC
sensitivity.
sensitivity Test
completed 12/10/2009.
150,000
Peak PID Response
100,000
100 000
50,000
0
0.00E+00 1.00E+06 2.00E+06 3.00E+06 4.00E+06 5.00E+06 6.00E+06 7.00E+06 8.00E+06 9.00E+06 1.00E+07
Peak XSD Response (uV)

7. Key Points
These test show the working range of
the XSD (150 ppb to greater than 400
pp
ppm TCE) and PID detectors ( pp to
) (~1 ppm
greater than 400 ppm TCE).
Other chlorinated specific detectors (i.e.,
ECD) do not have this working range.
The broader working range of the XSD
detector allows for more exact modeling
of XSD results.