Versatile tube-free jet for gas chromatography detector having a conical inlet skirt
A jet injector for a GC that includes a body, a skirt extending away from the body; and a bore that extends through the skirt and the body to create an inlet and an outlet for the jet injector.
1. A jet injector for gas chromatography (GC) comprising:
a body section including a single outlet of the jet injector and positioned at one end of the jet injector;
a skirt section including a conical outer profile that is tapered outwardly towards a single inlet of the jet injector and positioned at an opposite end from the body section; and
a threaded section positioned between the body section and the skirt section,
wherein a bore extends through the skirt section, the threaded section, and the body section to create the inlet and the outlet for the jet injector, and
wherein a wall that forms the skirt section tapers from a larger thickness generally adjacent the threaded section to a smaller thickness generally adjacent the inlet of the jet injector.
2. The jet injector of claim 1 , wherein the bore includes a first diameter at the inlet and a second diameter proximal to the outlet that is different from the first diameter.
3. The jet injector of claim 1 , wherein a portion of the bore corresponding to the skirt section substantially includes a variable diameter and a portion of the bore corresponding to the body section substantially includes a constant diameter.
4. The jet injector of claim 1 , wherein a portion of the bore corresponding to the skirt section includes a variable diameter, a portion of the bore corresponding to the threaded section includes both a variable diameter and a constant diameter, and a portion of the bore corresponding to the body section includes a constant diameter.
5. The jet injector of claim 4 , wherein the body section includes the outlet having an orifice that includes a diameter that is different from the diameter of the bore corresponding to the skirt section, the threaded section and the body section.
6. The jet injector of claim 4 , wherein the variable diameter of the bore is at an angle of about 10 degrees.
7. The jet injector of claim 1 , wherein the jet injector includes a total length of from about 20 mm to about 50 mm.
8. The jet injector of claim 1 , wherein the skirt section includes a length of from about 1 mm to about 50 mm.
9. The jet injector of claim 1 , wherein the body section includes one of an extension or protrusion that includes the bore.
10. The jet injector of claim 9 , wherein the extension or protrusion is from about 1 mm or less to about 30 mm or more.
11. The jet injector of claim 1 , wherein the body section, the threaded section, and the skirt section form a single unitary piece.
12. The jet injector of claim 1 , wherein the body section, the threaded section, and the skirt section are made of high-performance alloy, and wherein the high-performance alloy is an alloy that is resistant to galling.
13. The jet injector of claim 1 , wherein the body section, the threaded section, and the skirt section are made of high-performance alloy, and wherein the high-performance alloy includes one or more of chromium, manganese, nickel, copper, titanium, molybdenum, silicon, columbium, tantalum, carbon, phosphorus, sulfur, nitrogen, and iron.
14. The jet injector of claim 1 , wherein the body section includes an indicator that corresponds to a predetermined size of an orifice at the outlet.
15. The jet injector of claim 1 , wherein the skirt section includes a length of from about 5 mm to about 45 mm.
16. A jet injector for gas chromatography (GC) comprising:
an exterior threaded section;
a body including a single outlet of the jet injector and positioned at one end of the jet injector;
a skirt including a conical outer profile that is tapered outwardly towards a single inlet of the jet injector and positioned at an opposite end from the body; and
an indicator incorporated into the body and corresponding to a characteristic of the jet injector,
wherein a bore extends through the skirt, the threaded section, and the body to create the inlet and the outlet for the jet injector, and
wherein a wall that forms the skirt tapers from a larger thickness generally adjacent the threaded section to a smaller thickness generally adjacent the inlet of the jet injector.
17. The jet injector of claim 16 , wherein the indicator is in a form of a number of rings around the body.
18. The jet injector of claim 17 , wherein the number of rings around the body determines a predetermined size of an orifice in the body.
19. The jet injector of claim 16 , wherein the indicator is in a form of a color, a marking, or a number.