sample-prep sample-prep

Author Comment Last activity Moderation
atlaslab_marketing "Nice Aricle!! ATLAS lube oil testing research centre gives quality and condition evaluation of oils utilised in motors and other equipment. We inc..." | Read more » over 3 years ago
Ag8n "What do you think of the ones that are transparent on all four sides? That way the cuvettes can be used for trans, abs, flores, or turbidity. The..." | Read more » about 5 years ago
warren "Oh, it doesn't have to be CC-BY-SA -- it could be CC-BY; your permission here wouldn't be CC-licensing but just a one-off to us, right? The only re..." | Read more » almost 7 years ago
eustatic "Photo rules at GRN are a bit sensitive just now. I can give you permission to use them with attribution ("by Gulf Restoration Network") immediatel..." | Read more » almost 7 years ago
warren "Hi, Scott - we're using some of the photos you posted here in our report, but I was curious if you'd release the linked-to albums under CC-BY or CC..." | Read more » almost 7 years ago
warren "Yes! annchen is someone else, i guess. I didn't use @ so whoever that is doesn't get another email :-) " | Read more » about 7 years ago
eustatic "isn't Ann Chen @ann? " | Read more » about 7 years ago
eustatic "Epic Chen-terview " | Read more » about 7 years ago
eustatic "Yeah, Ann put the fire of deadline to me. well, no. i've never had a test done to determine this question of crude vs refined. i just thought that..." | Read more » about 7 years ago
warren "Love this. Thanks Scott! One thing I'm thinking is that if there's one more expensive lab test done to determine that one sample is crude and not ..." | Read more » about 7 years ago
eustatic "Ha. These questions are painful. " | Read more » about 7 years ago
gretchengehrke "Fabulous post, Scott. Thanks! For each of these situations, would the process be to try to convince Louisiana DEQ that there is oil and that the oi..." | Read more » about 7 years ago
warren "These look good too, and come with a spectrum datasheet: http://www.ledgroupbuy.com/solderless-true-violet-led-405nm/ " | Read more » about 7 years ago
warren "Powered on one of these, with a dial: http://www.watterott.com/de/Wattuino-Nanite85?x56e76=f63b1cee028854c06b93338f2945a806 " | Read more » about 7 years ago
warren "Here's the big list of UV LEDs below 405 nm " | Read more » about 7 years ago
warren "Crap, those are only in quantities of 400+ or 1000+. I'll keep looking. " | Read more » about 7 years ago
warren "@tonyc @ygstcu - looking at higher powered LEDs, I've found: ~$4.40: http://www.digikey.com/product-detail/en/VLMU3500-385-060/VLMU3500-385-060TR-..." | Read more » about 7 years ago warren "@ygzstc - pointing you at this note since you've ordered some very bright UV LEDs. Oops, missed your comment mathew - we'll have to try that, thou..." | Read more » over 7 years ago mathew "Ok- so styrene cuvettes are dissolved by diesel fuel and several other oils. In the photo below you can see the bottom dissolving into a sticky mes..." | Read more » over 8 years ago liz "News from the North Brooklyn Boat Club: Yesterday NYCDEP reported a break in the case. In their words: "We received an anonymous spill report of ..." | Read more » over 8 years ago jaia "I love the price on these cuvettes from Carolina Biological --$29.95 for a pack of 100. http://www.carolina.com/spectrophotometer-accessories/spec..." | Read more » over 8 years ago
mathew "seems like auto stores sell oil absorbers. Autozone sells "new pig" brand, and they make an oil-only rag: http://www.autozone.com/autozone/accesso..." | Read more » over 8 years ago
mathew "What happens if you unscrew the lens on the laser and put it in front of the LED? can you concentrate the light to make a brighter point? " | Read more » over 8 years ago
amysoyka "Also some tips on the straws. *Straws seal best of you wait until the tongs are hot and then put them in. *To get liquid in them, flip, squeeze, ..." | Read more » over 8 years ago