I have memory effect challenges with some metals in my icp-ms analysises and I think the metals are getting stuck in the cones. I was going to run some flushing and washing tests using mixture of HNO3 and HCl, but I'm not sure if the nickel cones can take that mixture. The concentration I was going to use is 4%+4% at maximum, so it's not very concentrated. So, my question is that will that acid mixture damage the cones? The cones I am using are G3280-67061 sampler cone and G8400-67200. Thank you in advance!