Analytics for Chemistry, Biology and Production:

Analytics for Chemistry, Biology and Production:
When all you have is a hammer, everything looks like a nail. _{-late 20th century.}

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The 'Bar-Sipper': ^{[1, 2]} _{Speed up your daily routine! - with almost no cost !}

Are you still filling the cuvettes for your spectrophotometer as it already Mr. A. Beer (1825 - 1863) and Mr. J. H. Lambert (1728 - 1777) did, — manually!, or even worse, are you using a peristaltic pump or water-jet vacuum pump for filling/cleaning your cuvettes? Then you also didn't gain very much in “celebrating” spectroscopy at all, and you are using the first till the fifth deviation on your 'recorded' spectra to evaluate the concentration of your samples.

(At the same time you are speeding up your routine, you can also save a lot of electricity and water, — for our kids!)

But lets first save your problem: Filling the cuvettes manually!:

Have you ever thought about, how much time you spend for filling and cleaning your cuvettes by hand, between each measurement of a sample. How many times you fill and empty the cuvette to be sure, you will not have any sample cross contamination between two measurements. And then, you start cleaning the cuvette on it's outside with a 'Kleenex' to remove all solvent, hopfully all sample solution, and all fingerprints, and then you open the sample compartment of your spectrophotometer to set your cuvette at the right place, close the compartment, and now, after a wile, you can finally read the absorbance of your sample on the computer screen. Probably, you print the value and some other data of your sample, and you start the whole process over and over again!

Why are you not doing it much easier, with less stress, and five times faster?

The 'Bar-Sipper' ^{[1, 2]} costs you less as a pair of Quartz or fused silica cuvettes, so the most expensive part will be a set of flow-through cuvettes^[3], but be assured — it's the last set of cuvettes you have to buy, because you don't have “any” chance to brake it anymore. Put the teflon tube into the sample, press two times the 'Bar-Sipper' down und let it come up again, wait your little wile, and print your result. Use your tissue to clean the end of the Teflon tube, and put it into the next sample, and now you can repeat this simple process over and over again. — Is it not much easier, and much faster, and so simple? You will never have contaminated fingers and clothes again, either with solvent nor with sample. You need only one tissue for the whole day, and you save a lot of solvent and vexation, too. What a lucky man/women you are, if you own a sample changer. You can connect a whole pathlength set of cuvettes together and put the 'Bar-Sipper' at the end, and the only task you have to do, is putting your sample changer in the right position for a good measurement. And think about, your measurements will become more reliable, too, because you don't always change the relative position of the cuvette in the light beam, from sample to sample!

Now it's time to have a look at this incredible instrument, and how it is used:

(“Double-klick” on the individual picture, to see more details! Enlarge it in the new window as much as possible, than you can read the text!)

Is the 'Bar-Sipper'^{[1, 2]} not a marvelous thing ?:
He looks like a Dispenser, — and he is a Dispenser!, but he has an inverted operational direction.
He collects the waste in the bottle, and when he raises to the top position, - driven by a spring, he fills for you all cuvettes^[3] !
Have you ever seen a more reliable instrument as he ?
He is absolutely following the important law:
“Make it as simple as possible, — but never simpler !”

Don't forget to think about:
- You don't need electricity, or water to make he operating !
- If you need it, you can adjust the volume he has to draw through your cuvettes !
- Have you seen it in the pictures, you can still use your old fashioned flow through cuvettes !
- He probably needs never a service, and he is absolutely inert against almost every solvent !
- You need less solvent, and sample, and you are almost five times faster, with less stress as ever !
- You save a lot of water and you are collecting the waste in the bottle, and
you can get the the waste for it's disposal, without be self contaminated in any way !
- And finally, you are doing a small part, but even a part, for our environment !

Do you know, that HE has an ideal partner for pharmceutical analysis?:
- As Example: For Content Uniformity (CU) with its immense number of tablets or ...., or ....,
which have to be analysed all individualy, Bar-Sipper ^{[1, 2]} with Flow Through Cuvettes ^[3], and
Prep-Set^[4] are two workhorses of special kind, never tiered, with a unbelievable speed, extrem
fugal (You never used less solvent per tablet, before!), and for almost no service costs.
- Almost the same can be told about Bar-Sipper ^{[1, 2]}, Flow Through Cuvettes ^[3] and Prep-Set ^[4] for
the manual or semi-automated Dissolution Ratio (DR) tests of pharmaceutical products.

How can you get the 'Bar-Sipper', and what it costs ?:
Try it once in the Internet, asking Google about 'Bar-Sipper'. If you can't find it there, give me a mail and I will tell you, where you can get it!

^References:

[1]	"The Bar-Sipper: " Order it by SOCOREX ISBA SA, Switzerland ! http://www.socorex.ch/
[2]	Die ideale Lösung: 'Bar-Sipper' (The ideal solution: 'Bar-Sipper') P. Forster Central Analytics CIBA-GEIGY Ltd.
[3]	" Flow Through Cuvettes" for an affordable Price: Best results in case of sample-overtake, bubble-robustness/-inertness, and cleaning, we have found by: HELLMA GmbH (Hellma-Worldwide) Cleaning Cuvettes: - See under: "Beer-Lambert Law FAQ's / Spectroscopy FAQ's"
[4]	"The Prep-Set: " Speed up your daily routine - and save a lot of many ! www.p-forster.com/english/products/PrepSet/PrepSet.htm

Peter Forster:

Software Development & Consulting
Peter Forster
Neubadstrasse 88
CH-4054 Basle, Switzerland