Search found 14 matches

by CarolF
05 Dec 2006, 10:43
Forum: Miscellaneous
Topic: Keep up the good work.
Replies: 1
Views: 1745

Keep up the good work.

Hi all, just a quck note to say I am retiring after 19 plus years. I have really enjoyed logging onto this site over the past months. I only wish such a site had existed when I started working in my job all those years ago. I am hoping to be able to log on occasionally from home and who knows may be...
by CarolF
05 Dec 2006, 10:31
Forum: Chemistry and Labware - General
Topic: Fine plastic tubing coils
Replies: 2
Views: 1634

I was not there but it sounds like the alternative to glass in the pasteur experiment. We sometimes use a piece of plastic tubing with a full loop which then has one end pointing upwards and the other through a cork into the beaker containing the broth. We maintain the tubing's shape by copper wire....
by CarolF
21 Nov 2006, 08:20
Forum: Biology, Physics...
Topic: fixing ammeters and voltmeters
Replies: 5
Views: 3411

Jim Cardigan from Scientrific calls in here annually and we have him repair meters, microscopes, collision trolleys and lots of other equipment. He has all the necessary spares and is not too expensive. I understand that he sometimes attends the conferences so you may catch him there, otherwise his ...
by CarolF
20 Nov 2006, 13:49
Forum: Chemistry and Labware - General
Topic: Gas equilibrium
Replies: 2
Views: 1451

We have a set of the same they are called NO[sub]2[/sub] and N[sub]2[/sub]O[sub]4[/sub] Temperature Equilibrium Tubes Catalogue No. 4426 and they come with instructions from The Welch Scientific Company, 7300 N.Linder Avenue, Skokie, Illinois. 60076 U.S.A. Mind you the set we have a really quite old...
by CarolF
02 Nov 2006, 14:10
Forum: Safety with Chemicals
Topic: storing dilute solutions
Replies: 6
Views: 3778

We now have all our dropper bottles stored in Unitrays which are small white trays with 10 compartments which will take 10 dropper bottles of 25 ml or 50 ml size. These are then stored in these trays in alphabetical order on shelves, similar to bookshelves in the prep room. They are excellent. Neat ...
by CarolF
24 Oct 2006, 13:03
Forum: Chemistry and Labware - General
Topic: Light Scattering Experiment
Replies: 2
Views: 1848

I have done the following prac lots of times and it works well. Solution A is a concentrated solution of sodium thiosulfate . solution B consists of 35 ml of concentrated sulfuric acid to 200 ml of water. In a darkened room, arrange for a strong beam of light (we use an old slide projector), to pass...
by CarolF
27 Sep 2006, 08:59
Forum: Safety with Chemicals
Topic: risk assessment
Replies: 145
Views: 39383

Hi Robb, I sent a private message but not certain if you have received it. We are currently reviewing RA procedures and drawing up a new form. I was wondering if you could forward by fax a copy of your format and any other relevent information that may assist and I will pass it on. Our frax no. is 4...
by CarolF
20 Sep 2006, 09:10
Forum: Chemistry and Labware - General
Topic: Purple agar jelly
Replies: 9
Views: 3858

To avoid the agar gel not setting I always put a little extra in for good measure. I have had no trouble with the loss of colour and I always use stainless steel trays, cover with gladwrap and store in the fridge. It has lasted for two or three days this way before use and worked well. I would not p...
by CarolF
11 Sep 2006, 14:07
Forum: Chemistry and Labware - General
Topic: Diastase
Replies: 2
Views: 1606

I have a number old receipes for various pracs and one is a 1% diastase solution for a substitute for saliva. However, there is a note on my file to make sure that the diastase purchased is free from reducing sugars. Is ithis of help?
by CarolF
07 Sep 2006, 11:34
Forum: Safety with Chemicals
Topic: Bromine
Replies: 20
Views: 9015

Yes I store it in a dessicator with paraffin on the seal in the fume hood or well ventilated cool place for short term storage ie then dispose of it immediately topic finished.
Carol
by CarolF
05 Sep 2006, 12:08
Forum: Sourcing Materials & Eq Repairs
Topic: SHIPWRECKS AND SALVAGE
Replies: 3
Views: 2287

Serrata sells small metal rods in stainless steel, aluminium, brass, copper etc.. We used these together with nails of a similar size.

Hope this is of some help

Carol
by CarolF
05 Sep 2006, 12:05
Forum: Safety with Chemicals
Topic: FUME CUPBOARD
Replies: 4
Views: 2900

We have 3 fume hoods regularly checked and certified by ATT Advanced Technology of 3/16 Salisbury Road, Asquith. NSW Contact details Phone 02 94888924 http://www.<URL removed, see forum rules> email info@<URL removed, see forum rules> We have had no problems with them. Hope this is of some help.
by CarolF
23 Aug 2006, 15:37
Forum: Biology, Physics...
Topic: Prepared Slides
Replies: 3
Views: 2372

Prepared Slides

It may be worth trying to use more nail polish to fix coverslip to slide. I have not tried it for this material but have for others. It is worth a try.
by CarolF
13 Jun 2006, 10:15
Forum: Chemistry and Labware - General
Topic: Removing Rust
Replies: 7
Views: 3778

Rust stains.

I have found soaking in warm oxalic acid solution will remove those rust stains very quickly.