| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Please go to the web page mentioned. You will see that this test works by reacting the extract with iron (III) chloride. Many other materials wil..." | Read more » | over 1 year ago | |||
| Ag8n | "A better approach would be Uv/ vis. Phenols, such as BPA, absorb at about 280 nm. So you would set up an extraction to pull out the BPA and run a..." | Read more » | over 1 year ago | |||
| Ag8n | "Please tell me if this is correct. Is a double decimeter also called a ruler calibrated in centimeters? " | Read more » | over 1 year ago | |||
| Ag8n | "Thank you for the reply. The new page is much better. As for quartz cuvettes, I used them for 28 years in UV/vis instruments. That was part of t..." | Read more » | over 1 year ago | |||
| Ag8n | "I think this is a typo. Under container material, the first entry is quartz(a crystalline silicate material). I think it is meant to be quart( a ..." | Read more » | over 1 year ago | |||
| Ag8n | "Need some more information. But have a couple of ideas!! " | Read more » | over 1 year ago | |||
| Ag8n | "First, I'd like to thank Alejo for posting this page. It is very helpful. Then, I' d like to refer you to the comments page in compound chem ( da..." | Read more » | over 1 year ago | |||
| Ag8n | "You learn to accept many environmental issues. The color of metal chelates in stream from a storm water discharge has a certain charm, but it stil..." | Read more » | over 1 year ago | |||
| Ag8n | "Thank you! This is very helpful. " | Read more » | over 1 year ago | |||
| Ag8n | "We were in an medical environment, usually class 100,000. These instruments are different from the ones used by public lab, but based on the same ..." | Read more » | over 1 year ago | |||
| Ag8n | "Have a good holiday! " | Read more » | over 1 year ago | |||
| Ag8n | "The data is impressive. Dumb question here. Does the instrument autimatically check it's zero point? " | Read more » | over 1 year ago | |||
| Ag8n | "This looks excellent to me! Thank you! " | Read more » | over 1 year ago | |||
| Ag8n | "Clarification- the biolumix works on transmitted light. For this application( root tracking), you would need reflected light. " | Read more » | over 1 year ago | |||
| Ag8n | "First, see somagen.com/products/biolumix/ The instrument was quite interesting. It used transmitted light and cylinders, not plates. My friend ..." | Read more » | over 1 year ago | |||
| Ag8n | "There are some automated microbial systems. They do pretty much all the work. They incubate the samples. And instead of colony counting, they ..." | Read more » | over 1 year ago | |||
| Ag8n | "Do you want to look at commercial designs already in existence? Or would you rather stay away from them so as not to contaminate your design? Regar..." | Read more » | over 1 year ago | |||
| Ag8n | "Thanks for the reference. I'll read it over. Regards. " | Read more » | over 1 year ago | |||
| Ag8n | "For example, in the medical manufacturing field, class 100,000 rooms are common. Those are not the same units used in the environmental work. " | Read more » | over 1 year ago | |||
| Ag8n | "I always start with units and work up from there. For example, there were dramatic differences in the units used for air particulate in the medical..." | Read more » | over 1 year ago | |||
| Ag8n | "Dr Beck, First off, thank you for your reply. Let me take this one at a time. What was impressive about this experiment? I'm a retired R&D ..." | Read more » | over 1 year ago | |||
| Ag8n | "That's if a fire tablet will even work!!! " | Read more » | over 1 year ago | |||
| Ag8n | "Very impressive! It gets better with every read. Can you tell me how to figure out the set up for other instruments? For example, where can I fi..." | Read more » | over 1 year ago | |||
| Ag8n | "I think your best bet is to call ocean optics. They used to be open to experimentation with their equipment. Unfortunately, the last time I dealt..." | Read more » | over 1 year ago |