Nanodrop from Thermo is easy used and powerful equipment.

You can use NanoDrop or PicoDrop.

Thanks a lot to all!

Nanodrop is good

Nanodrop works brilliant for both RNA and DNA,,,,

Ya Nanodrop is really good for quantification of DNA, RNA and Proteins. Maximum amount of sample required so far is 1 microlitre.

I recommend to you using nano-drop device, that used for DNA, RNA , protein, plasmid and so on.

Good luck

i also use nanodrop.

either for DNA, RNA, proteins, even for colorimetric analysis

You can use Nanodrop but the best method is by DNA cuantifcation by gel or use a QuantBio from Invitrogen

Use Nanodrop it work best for DNA and RNA quantification

What do you mean saying "traditional spectrophotometer", Richard? Could you advise me particular device? thank you for reply!

i think traditional spectrophotometer is larger UV spectrophotometer device, such as GeneQuant. It requires 10 ul to 70 ul of DNA samples, and really expensive cuvette (if scratched or broken, must buy new one ~up to 2500$)

I use Nanodrop in my lab, and it's very reliable, fast and only requires 1 microL

Nanodrop is better....

Well, I am using eppendorf BioPhotometer Plus with 50ul of DNA for my assays on Luminex. It works fine, no issues. Alternatively Nanodrop can also be used where the accuracy is not so important (+ or - up to 10% error).

better than NanoDrop: http://www.implen.com/nanophotometer/

NanoPhotometer -> lower sample volume, wider dynamic range, no maintenance, very accurate, and always cuvette capability.

Qubit is a lot more involved with standard curve creation, it is a fluorescent labeling method instead of a UV absorption method.

I use the nanodrop and is neru useful for measuring DNA/RNA and proteins.

I've used Nanodrop for years, than another lab got an Implen - and Implen has shown at least with the Pearl a much better stability of repeat measures, especially with very small samples pipetted. If you can choose, I'd say go with Implen, I much prefer their technology now over Nanodrop machines.