C60 concentrations from major vendors
JoeB
16 Apr 2016
I've always been interested in C60 since hearing about it, but will wait until more research has been done. I wonder when a "larger" company will pick it up and market it to the world?
Nate-2004
29 Apr 2016
Has anyone been able get info on the harvest dates or test the polyphenol mg/kg in the three vendors listed?
ambivalent
05 Jan 2017
I've recently contacted Kelsey Moody regarding the lab-testing for toxic by-products in the samples of c60oo from vendors referenced in Jeanlzt's comment. He replied as follows (posting with his permission):
The only group that has ever not failed our quality control is GoodandCheap. However, I believe we only tested one batch and other vendors have passed with one batch but not with others.
In general, concentration is a good metric for the presence of the toxic by-products. When they form, the absorbance spectra changes and by HPLC is appears as though the concentration is off, but in fact it is a spectra shift.
So at this point there is no vendor I could confidently recommend to be free of contaminants. My best recommendation would be to make it in-house and fresh, but that isn't terribly scientific.
theMexican
06 Jan 2017
I've recently contacted Kelsey Moody regarding the lab-testing for toxic by-products in the samples of c60oo from vendors referenced in Jeanlzt's comment. He replied as follows (posting with his permission):
The only group that has ever not failed our quality control is GoodandCheap. However, I believe we only tested one batch and other vendors have passed with one batch but not with others.
In general, concentration is a good metric for the presence of the toxic by-products. When they form, the absorbance spectra changes and by HPLC is appears as though the concentration is off, but in fact it is a spectra shift.
So at this point there is no vendor I could confidently recommend to be free of contaminants. My best recommendation would be to make it in-house and fresh, but that isn't terribly scientific.
Interesting, I was thinking of trying goodandcheap but wasn't sure if it would be better to go the homemade shaken and unfiltered route. Although I do note that there was a lack of multiple samples from that vendor.
