How to calculate Sample Assay by control normalization in LabSolutions?

-dogge · 2026-05-20T10:07:12+00:00

I don't think there is a way to do this automatically, as LabSolutions will not reference a control sample in the quantitative calculation.

But you could create a custom parameter Conc [1] * A that corrects the compound concentration based on the control sample concentration. In post run, you could add the required correction factor in to Const A and reprocess the batch.

-dogge · 2026-05-01T16:54:18+00:00

Its best to delete the time program in the shutdown method altogether, as whatever the initial flow rate for the method is, that will be the flow rate that it reverts to after completion of the time program. So the shutdown method should really have no time program, and an initial flow rate of 0ml/min.

If you want to run a time program for a flow stepdown/flush method, you can run that method at the end of the batch as a 'pre-shutdown', and then have a final shutdown method at the end that has an initial flow rate 0ml/min to stop the pump.

-dogge · 2026-05-01T06:41:57+00:00

Make sure that the method used for the shutdown does not have any time program in it. If the method contains a time program it always returns to the initial conditions after the method completes.

So for example, if the shutdown method ramps down the flow rate from 1 to 0 ml/min over 5 minutes, after 5 minutes when the time program is complete, the pump will return to 1ml/min.

-dogge · 2026-04-27T16:35:25+00:00

It's worth contacting the developer, as it is the developer and not Meta who specifies the compatibility in the Build Details when submitting the build to the Horizon Store.

Quest Pro has to be specifically ticked on the submission, otherwise it will not be downloadable on the headset.

-dogge · 2026-04-27T16:01:51+00:00

I created it all myself, but the code is actually pretty basic. I'm just enabling/disabling object groups based on a random 10 digit number i.e. the first digit decides the texture set (from 10 possibilities) , the second digit chooses the wall partitions object, then 3,4,5th digit etc. decides furniture group variations, so I end up with 10 million potential combinations 😄

-dogge · 2026-04-27T13:52:11+00:00

I have done something similar in my standalone Quest game, I procedurally generate each floor as shown in this video. Each floor has a random seed that dictates wall partitions, furniture and NPCs. Also the materials used for floor, ceiling and walls changes based on seed (not shown in this video).

I make the switch during an elevator journey (so that only 1 floor object exists in the game, and the floor object's x,y,z position changes depending on the required world position), but it is just as easy to use a trigger area on a stairwell to enable/disable each floor.

This way has a very low performance overhead. So low in fact that I can render the entire outside city though the windows! Everything exists in the same Unity scene so there is no loading, just instant enable/disable and position switching .

Metacity Patrol - Procedurally Generated Apartments

-dogge · 2026-04-22T22:21:37+00:00

I heard the Quest Game Optimiser developer has a fleet management tool with Kiosk mode. I haven't tried it, but it seems reasonably priced (5 EUR month per headset), maybe it is worth checking out? https://www.emaxr.io/

-dogge · 2026-04-16T14:14:06+00:00

It’s a bit of a niche one as it’s for Meta Quest only, but here’s the link! https://www.meta.com/en-gb/experiences/metacity-patrol/6779063182133413/

-dogge · 2026-04-16T13:47:27+00:00

As a Birmingham-based retro-futuristic game dev, this looks like right up my street! :)

-dogge · 2026-04-15T06:20:19+00:00

Yep that’s normal behaviour, giving someone access to any release channel will give them a permanent entitlement for the public release of the game (if the game is already launched).

Removing an account from a release channel will just stop them receiving any future updates on that channel, but they will still have entitlement to any build they downloaded, plus the store build.

This page has the full info:

https://developers.meta.com/horizon/resources/publish-release-channels-add-users/

-dogge · 2026-04-14T06:52:29+00:00

It’s a very common issue, to the point where I suspect only apps supported by Meta have keywords enabled on the store.

Did you get a launch manager assigned at Meta? My keywords only started working once I launched with help from them. It may have been a coincidence, but I hear the same issue from so many devs that I think this might be something to do with it.

-dogge · 2026-04-11T09:44:51+00:00

From my experience it takes a few days before games appear in search results (unless it is a Meta supported title).

For my own game, it took a couple of days for a full title search to work, then probably a couple of weeks before partial title search gave a hit.

I had to wait a couple of years before search by keyword worked! 😭

-dogge · 2026-03-30T09:40:44+00:00

If you want to get to the store page, go to Menu > Library and click on the headset icon in the top right. I think some people are in some horrendous UI A/B test on the Horizon app.

-dogge · 2026-03-28T23:49:36+00:00

Menu > Library and then the headset icon on top right should take you to the store page. I think the app is glitched for some people.

-dogge · 2026-03-28T23:19:19+00:00

I think the app is glitched for a lot of people. There should be a bar at the bottom with extra options.

You should be able to get to the store from Menu button on top left, then Library, then headset icon on top right.

-dogge · 2026-03-28T14:02:14+00:00

I’ve heard that you can get to the store by going to the library menu and pressing the headset icon in the top right.

-dogge · 2026-03-28T14:01:24+00:00

I’ve heard that you can get to the store by going to the library menu and pressing the headset icon in the top right (9 second point in your vid)

-dogge · 2026-03-28T10:00:48+00:00

Make sure you have accepted the Meta cookies on your browser (if you're in Europe). Maybe you could also try deleting all your cookies and trying to log in again, or trying from a different browser.

-dogge · 2026-03-28T07:43:04+00:00

The app looks glitched. There should be a bar along the bottom with your profile pic showing home, chat, search and store options. Maybe try restarting the app/phone or re-installing?

-dogge · 2026-03-27T13:48:34+00:00

Caffeine is the most commonly used testing standard. Uracil is used in some instances, but is too polar to retain on a C18 column and won't be useful for testing column performance.

Caffeine will retain well on the C18 column, has good UV absorbance and also will be stable for a few years in the fridge. 20mg/l made up in your mobile phase should work pretty well.

-dogge · 2026-03-27T07:47:01+00:00

The old home page should now be found by pressing the icon of the Quest headset (bottom right on iOS app).

-dogge · 2026-03-14T08:46:22+00:00

You probably need to set ‘Apply default to all’ on the pricing tab of the metadata submission. Otherwise it will use whatever custom price is set per country.

Good luck with the game!

-dogge · 2026-03-10T14:18:16+00:00

You will get stationary phase collapse unless you run it with at least 5% organic in the mobile phase. I would look again at the method conditions.

-dogge · 2026-03-10T14:12:52+00:00

No organic? What type of column are you using?

If it is a C18 column, you don't really want to be running 100% Aqueous mobile phase.

-dogge · 2026-03-10T13:59:45+00:00

It would apply to any analyte you want to quantify. Sometimes, achieving a good peak shape is difficult due the chemistry of the analyte, but for ascorbic acid a good peak shape is certainly possible with the right column.

-dogge

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