Method and apparatus for rapid screening of volatiles
First Claim
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1. An apparatus for rapidly screening volatile substances in a sample, said apparatus comprising:
- a) an injector;
b) a vapor delivery line in fluid communication with said injector;
c) a sensor element in fluid communication with said vapor delivery line and positioned downstream of said injector and said vapor delivery line, wherein all components upstream of said sensor element are substantially free of sorbent materials; and
d) a monitor in communication with said sensor element.
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Abstract
In one embodiment, the present method includes the steps of introducing a volume of a sample into a vapor delivery line and volatilizing at least a portion of the volume as it is carried through the vapor delivery line. At least a portion of the volatilized volume contacts a sensor element, which produces a signal that is monitored to reveal information about the sample. All components upstream of the sensor element are substantially free of sorbent materials so that the sample volume does not contact a substantially sorbent material before contacting the sensor element.
21 Citations
15 Claims
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1. An apparatus for rapidly screening volatile substances in a sample, said apparatus comprising:
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a) an injector;
b) a vapor delivery line in fluid communication with said injector;
c) a sensor element in fluid communication with said vapor delivery line and positioned downstream of said injector and said vapor delivery line, wherein all components upstream of said sensor element are substantially free of sorbent materials; and
d) a monitor in communication with said sensor element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification