DIY Endotoxin Testing for Peptides: Worth the Cheap Setup or Nah?

[cjdilan]

Has anyone tested their own peptides/aminos/etc. for endotoxins using a DIY chromogenic LAL kit like GenScript ToxinSensor ($110 for 32 tests)?

Basic setup: reconstitute → dilute → mix reagents → incubate → read color change (needs incubator + basic reader).

Add-on costs (cheapest): incubator $29–$40, basic reader $180–$250. Total ~$209–$290.

I was thinking of running through a 0.22 µm filter first (for sterility) then doing the endotoxin test. Should be a good safety baseline.

Way cheaper than lab send-off ($200–$500 per sample).

Would you do it yourself? Yes/no? Consider for savings or pass and outsource? Thoughts on reliability/safety?

This was proofed by AI.

 

[mainefungi]

Has anyone tested their own peptides/aminos/etc. for endotoxins using a DIY chromogenic LAL kit like GenScript ToxinSensor ($110 for 32 tests)?

Basic setup: reconstitute → dilute → mix reagents → incubate → read color change (needs incubator + basic reader).

Add-on costs (cheapest): incubator $29–$40, basic reader $180–$250. Total ~$209–$290.

I was thinking of running through a 0.22 µm filter first (for sterility) then doing the endotoxin test. Should be a good safety baseline.

Way cheaper than lab send-off ($200–$500 per sample).

Would you do it yourself? Yes/no? Consider for savings or pass and outsource? Thoughts on reliability/safety?

This was proofed by AI.

If your goal is simply to put your mind at ease, go for it. If your goal is to get refund or replacement from a vendor, an official lab result will likely be necessary.

 

[retarequired]

I would probably do this if I could get my hands on them here. Even if I wouldn't get a refund, I'd rather not get sick and throw away my haul than get sick and throw away my haul : p

 

[cjdilan]

Just mind at ease and extra safety measure.

Im a little up there in age and have a younger GF and she's got the procreation bug in her system.

In other words I don't want to sterilize myself (86 the swimmers) or get a pain in the ass bacterial to get rid off (have to cut a body part off).

 

[cjdilan]

I would probably do this if I could get my hands on them here. Even if I wouldn't get a refund, I'd rather not get sick and throw away my haul than get sick and throw away my haul.

Endotoxin kit link

the rest of the add-on items are found on amazon and ebay.

 

[Maiaao]

I would but the same kit costs 300€ in Germany unfortunately. I'm looking for a source to buy from.

 

[Killerbudd0912]

Go for it. It's something like <5 Eu/kg per hr. I really don't think it's anything to worrie about. Enjoy the procreation process 👍

 

[Habibibi]

Has anyone tested their own peptides/aminos/etc. for endotoxins using a DIY chromogenic LAL kit like GenScript ToxinSensor ($110 for 32 tests)?

Basic setup: reconstitute → dilute → mix reagents → incubate → read color change (needs incubator + basic reader).

Add-on costs (cheapest): incubator $29–$40, basic reader $180–$250. Total ~$209–$290.

I was thinking of running through a 0.22 µm filter first (for sterility) then doing the endotoxin test. Should be a good safety baseline.

Way cheaper than lab send-off ($200–$500 per sample).

Would you do it yourself? Yes/no? Consider for savings or pass and outsource? Thoughts on reliability/safety?

This was proofed by AI.

Would love to hear your process and results. Would your method be able to quantify EU?

 

[Calm Logic]

Has anyone tested their own peptides/aminos/etc. for endotoxins using a DIY chromogenic LAL kit like GenScript ToxinSensor ($110 for 32 tests)?

Basic setup: reconstitute → dilute → mix reagents → incubate → read color change (needs incubator + basic reader).

Add-on costs (cheapest): incubator $29–$40, basic reader $180–$250. Total ~$209–$290.

I was thinking of running through a 0.22 µm filter first (for sterility) then doing the endotoxin test. Should be a good safety baseline.

Way cheaper than lab send-off ($200–$500 per sample).

Would you do it yourself? Yes/no? Consider for savings or pass and outsource? Thoughts on reliability/safety?

This was proofed by AI.

At least a few GB groups like PWGrove always do endotoxin testing now. But that is obviously limited to the peptides they sell.

 

[Turbo-Farmer]

Sounds awesome, you could easily get some dip slides too in order to perform a basic sterilty test.

 

[Maiaao]

Endotoxin kit link

the rest of the add-on items are found on amazon and ebay.

BTW just so you're aware the kit is for a chromogenic test, you'll need the gel clot test.

 

[Jerrydee]

C

If your goal is simply to put your mind at ease, go for it. If your goal is to get refund or replacement from a vendor, an official lab result will likely be necessary.

Cannot be put better , absolutely agree also vendors usually and only accept Janos test for refunds mostly

 

[cjdilan]

Go for it. It's something like <5 Eu/kg per hr. I really don't think it's anything to worrie about. Enjoy the procreation process 👍

I have a feeling you're going to jinx me.

 

[cjdilan]

Sounds awesome, you could easily get some dip slides too in order to perform a basic sterilty test.

Googlin now!

 

[ambot88]

Too much effort for me personally, but super interesting and I hope you come back to show us the results if you do it.

 

[Turbo-Farmer]

You can order a set of 16 endotoxin tests for $110($6.75 each). This is a quantitative gel test with a sensitivity to 0.25EU/ ml .

https://www.genscript.com/kit/L00350-ToxinSensor_Chromogenic_LAL_Endotoxin_Assay_Kit.html

 

[AYarter]

I mean, are you really going to throw away a vial that has three eus?

 

[biobob]

I mean, are you really going to throw away a vial that has three eus?

Solid question.

 

[Maiaao]

You can order a set of 16 endotoxin tests for $110($6.75 each). This is a quantitative gel test with a sensitivity to 0.25EU/ ml .

https://www.genscript.com/kit/L00350-ToxinSensor_Chromogenic_LAL_Endotoxin_Assay_Kit.html

The one you linked is a chromogenic test, also consider that per test, you have a positive control, a negative control, a sample positive control and finally the sample. So one needs 4 rxns to test one sample.

 

[Maiaao]

I mean, are you really going to throw away a vial that has three eus?

You can dilute the sample to adjust the detection range.

 

[tedvio]

Am I understanding correctly, via the info on their site, that it only measures up to 1 EU / ml?? Isn't that a tiny amount?

 

[Maiaao]

Am I understanding correctly, via the info on their site, that it only measures up to 1 EU / ml?? Isn't that a tiny amount?

Check out page 20 of the manual, it gives you an example of what can be achieved with dilution. In that example, by diluting the sample from 1:200000 to 1:800000, they tested that the sample contained between 50000-100000 EU/ml.

 

[CallieKat]

The endotoxin test seems pretty cool. I think some vendors should sell these as well.

 

[Airborne Daddy]

This totally explains my high wbc the last 15 months.... and a crp of 6

 

[tedvio]

This totally explains my high wbc the last 15 months.... and a crp of 6

Can't tell if you are joking or not......this was an issue from the past few months, not 15 months ago..... But, I guess stop taking your GLP for a couple of months and retest your blood....

 

[BNLFL]

This totally explains my high wbc the last 15 months.... and a crp of 6

Care to explain that for a old guy? I assume wbc is white blood cell, but no clue on crp.