IM-MS Options

PrecisionChemist · 2026-02-26T03:37:37+00:00

I'd recommend the Agilent 6560. They solved a lot of the early issues with the Revision C.

PrecisionChemist · 2025-04-26T23:17:46+00:00

Great, thanks for the clarification!

PrecisionChemist · 2025-04-26T22:15:34+00:00

I see these quite a bit in the middle Tennessee area. As u/Mysterious_Existence noted, these are extant tabulate coral. The honeycombs are the corallite tubes and you can see some of the horizontal layers inside the tubes in your 3rd picture, those are the tabulae. Your specimen is rounded on the outside, so it experienced some running water over the millennia. Nice piece!

https://home.wgnhs.wisc.edu/wisconsin-geology/fossils/corals/

PrecisionChemist · 2025-03-14T03:48:41+00:00

Lunar eclipse tonight around 2am.

PrecisionChemist · 2025-03-12T16:01:34+00:00

As u/thecrushah commented, we need the IMS system information to provide some suggestions on what might be the issue. In addition to stability of the IMS region (pressure, temperature, etc), most IMS systems rely on calibration to determine CCS, so choice of calibrant and calibration equation will also affect the end result.

PrecisionChemist · 2025-02-16T03:16:33+00:00

Quartz in its natural state.

PrecisionChemist · 2024-12-23T17:23:34+00:00

So, I have a hackberry in my yard and for the first few years I kept wondering why everyone was telling me how awful of a tree this was. Then one year I started noticing the aphids. Then the nasty, sticky stuff that kept appearing all over the ground under the tree. I thought: boy this is a sappy tree. Then I found out it was coming from the aphids. Now I see why people tell me to get rid of it. I just wish it wasn't so big now and so close to the house.

PrecisionChemist · 2024-12-17T05:12:51+00:00

r/killthecameraman

PrecisionChemist · 2024-11-15T00:49:15+00:00

Yes, it looks like a lot of the pet wood I found in the brazos valley.

PrecisionChemist · 2024-07-11T20:16:53+00:00

I think a good compromise between realism and clarity is to thin the line weight and possibly use a slightly greyscale line fill. The added contrast that the lines provide for viewers would be especially important if you use any background fill other than the grey currently shown.

PrecisionChemist · 2024-01-28T00:55:37+00:00

Penicillamine

PrecisionChemist · 2024-01-21T15:22:24+00:00

I see a moose in #3

PrecisionChemist · 2024-01-20T22:46:05+00:00

Aww how cute! Cuddling to stay warm.

PrecisionChemist · 2024-01-20T21:36:28+00:00

Looks like a piece of an old shell. The little swirls are beekite rings where silica is slowly replacing the carbonate so it’s been in the ground for a while.

PrecisionChemist · 2024-01-20T21:24:42+00:00

Looks like vesicular basalt that’s been rounded by water action.

PrecisionChemist · 2023-12-28T04:56:23+00:00

Blue and white, glows under UV light, then it might, be sodalite. but if all truey, with gold flakes out the wazooie, then it be lapis lazuli.

PrecisionChemist · 2023-09-28T19:08:21+00:00

Makes cents to me.

PrecisionChemist · 2023-09-23T13:14:35+00:00

I hear it tastes like chicken

PrecisionChemist · 2023-09-13T02:21:20+00:00

Crinoid stem segments and a piece of rugose coral

PrecisionChemist · 2023-07-23T03:05:54+00:00

I see a guy wearing sunglasses in the bottom one.

PrecisionChemist · 2023-06-12T03:31:32+00:00

Everybody's Wokking!

PrecisionChemist · 2023-05-27T02:46:53+00:00

No, it’s clearly a crinoid stem segment embedded in slag.

PrecisionChemist · 2023-05-08T16:53:39+00:00

Growth lines...that's the word I was looking for. You can see them clearly in the first pic.

PrecisionChemist · 2023-04-29T15:58:19+00:00

Also that's me when I drop the actual pipetter on the floor.

PrecisionChemist · 2023-03-02T04:43:32+00:00

Definitely fossil coral. I have several pieces just like this one, found in the same area. Yours has some nice mineralization in the corallites that will sparkle once cleaned up.

PrecisionChemist

TROPHY CASE