US 11,906,489 B2
Autosampler
Daniel B. Cardin, Simi Valley, CA (US)
Assigned to Entech Instruments Inc., Simi Valley, CA (US)
Filed by Entech Instruments Inc., Simi Valley, CA (US)
Filed on Mar. 2, 2021, as Appl. No. 17/190,120.
Claims priority of provisional application 62/984,130, filed on Mar. 2, 2020.
Prior Publication US 2021/0270783 A1, Sep. 2, 2021
Int. Cl. G01N 30/24 (2006.01); G01N 30/18 (2006.01)
CPC G01N 30/24 (2013.01) [G01N 30/18 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An autosampler system comprising:
a sampling platform;
an x-axis rail;
a y-axis rail;
a z-axis rail;
a pickup tool coupled to one or more motors configured to traverse the x-axis rail, the y-axis rail, and the z-axis rail, wherein the pickup tool is configured to move a sample container from a sample tray to the sampling platform;
a sample wand configured to draw a known mass of a gas sample having a volume in a range of 1-2500 cc from the sample container without addition of another gas into a sample preconcentrator fluidly coupled to the sample wand using a vacuum reservoir, wherein the pickup tool is further configured to move the sample wand to the sample container and wherein the gas sample is at a pressure that is greater than, less than, or equal to atmospheric pressure while contained in the sample container;
a chemical analysis device fluidly coupled to the sample preconcentrator; and
a sampling wand cradle, the sampling wand cradle coupled to a vacuum source such that a vacuum is drawn in the sampling wand while the sampling wand is disposed in the sampling wand cradle.