Search found 311 matches

by Kathryn
17 Nov 2020, 13:13
Forum: Forum Support Desk
Topic: Automatically Logging Out
Replies: 9
Views: 1420

Re: Automatically Logging Out

I keep getting logged out as well - for instance just then when I clicked on the reply button. Gets tiresome.
Kathryn
by Kathryn
17 Nov 2020, 13:10
Forum: Biology, Physics...
Topic: Unusual fungi
Replies: 0
Views: 835

Unusual fungi

Hi all Looking for suggestions as to what an unusual fungi might be. (Sorry I don't have a photo.) It was a dark colour but had a very metallic sheen to it. Definitely fungi and just on our normal nutrient agar. The swab was just taken from somewhere within the lab. Never seen anything like it befor...
by Kathryn
05 Nov 2020, 10:12
Forum: Chemistry and Labware - General
Topic: Electrophoresis Kits
Replies: 18
Views: 1256

Re: Electrophoresis Kits

We have the Hexogel Electrophoresis unit from STEM Reactor. Can run 6 gels at the same time. We have been very happy with the unit and with the service from STEM reactor. Mostly we do the candy dye extraction but once per year we get in one of the DNA simulation kits.
Kathryn :)
by Kathryn
05 Nov 2020, 10:06
Forum: Chemistry and Labware - General
Topic: Incubator or oven
Replies: 13
Views: 2882

Re: Incubator or oven

We have ordered an new incubator for next year. Our Thermoline has given up after 20yrs service. Repair was going to cost approx $800. We had the 43L but have decided to go to the next size up, 80L. Getting a Thermoline again.
by Kathryn
04 Aug 2020, 13:20
Forum: Recipes and Pracs
Topic: iron standard solutions
Replies: 6
Views: 914

Re: iron standard solutions

Managed to find the calculations from last year - it is more complicated than just weighing out a percentage as they have to be made from combining potassium thiocyanate and iron nitrate. If anyone is interested I will put up what I am doing.
by Kathryn
03 Aug 2020, 10:23
Forum: Recipes and Pracs
Topic: iron standard solutions
Replies: 6
Views: 914

iron standard solutions

Hi Hoping someone can help me out with making standard iron solutions. The chem students are going to be doing the Colorimetric analysis of iron in foods (Pearson) and need standard solutions of iron: 0.0050% 0.0025% 0.0013% 0.0010% 0.0005% Why doesn't the textbook provide instructions on how to mak...
by Kathryn
30 Jun 2020, 15:03
Forum: Chemistry and Labware - General
Topic: Plastic dropper bottles
Replies: 6
Views: 1982

Re: Plastic dropper bottles

Where do you source your bottles from? I am finding the dropper bottles seem to now be a wider bottle which does not fit in the unitrays.
Kathryn
by Kathryn
15 Jun 2020, 11:46
Forum: Miscellaneous
Topic: Luminol
Replies: 16
Views: 4596

Re: Luminol

Hi all. Does anyone know what the shelf life is of luminol (solid)?
Thanks
by Kathryn
04 Jun 2020, 12:41
Forum: The Lab Tech Position
Topic: What is the name of your roles
Replies: 14
Views: 4118

Re: What is the name of your roles

I always describe myself as a science technician - as far as I am concerned I have the qualifications and are far more than an assistant!
by Kathryn
04 Jun 2020, 12:36
Forum: Sourcing Materials & Eq Repairs
Topic: data loggers
Replies: 6
Views: 1650

Re: data loggers

thanks for your replies. Unfortunately our budget will not allow a class set to be purchased all at once.
by Kathryn
03 Jun 2020, 15:26
Forum: Miscellaneous
Topic: Anniversary
Replies: 6
Views: 1519

Re: Anniversary

I also joined on the 1 June 2006. This group has been so helpful over the years. But goodness I really can't believe it has been that long!
Kathryn
by Kathryn
03 Jun 2020, 15:23
Forum: Sourcing Materials & Eq Repairs
Topic: data loggers
Replies: 6
Views: 1650

data loggers

Hi all We have used the Data Harvest data loggers for ever. We are needing to purchase more data loggers and we are considering biting the bullet and going with a new brand as we haven't always been happy with the data harvest. What are others using and do you like them? Thanks in advance. Kathryn :)
by Kathryn
04 May 2020, 10:49
Forum: Safety with Chemicals
Topic: Risk Assessment for Lab techs
Replies: 23
Views: 5897

Risk Assessment for Lab techs

Good morning
I noticed a conversation on the ASETNSW Digest about doing RA's for preparing experiments eg diluting acids etc. I have not thought about doing this before. Apart from dilution of acids and bases what else do you make RA's for (separate from the teacher RA's for experiments)?
Kathryn
by Kathryn
17 Mar 2020, 12:12
Forum: Recipes and Pracs
Topic: burning experiments
Replies: 2
Views: 2356

Re: burning experiments

It needs to be things he can do himself
by Kathryn
17 Mar 2020, 11:35
Forum: Recipes and Pracs
Topic: burning experiments
Replies: 2
Views: 2356

burning experiments

Hi all One of our students would like to do his IP on something relating to the bushfires. eg: models of houses on the ground or on stilts; built from different products. It's great he would like to do something relevant but does anyone have any idea how this could be done in a safe controlled manne...
by Kathryn
11 Mar 2020, 10:21
Forum: Safety with Chemicals
Topic: Chemical waste bottles
Replies: 22
Views: 8104

Re: Chemical waste bottles

I was planning on having waste bottles for organics; inorganics (cobalt,copper, strontium); lead; nickel; chromium; zinc; silver. The 2.5L Hdpe bottles chemicals come in are stable so I would not be too concerned about them tipping over if they can be used for waste storage, and if I can source them...
by Kathryn
10 Mar 2020, 09:49
Forum: Safety with Chemicals
Topic: Chemical waste bottles
Replies: 22
Views: 8104

Re: Chemical waste bottles

Hi all Having just done my first ever chemical waste pick-up in the 15 years I have been here, I am now trying to be more conscientious with chemical disposal. I am following the advice on Science Assist. Does the wastes need to be stored in glass bottles or can some be in plastic? Where have you so...
by Kathryn
02 Mar 2020, 08:43
Forum: Sourcing Materials & Eq Repairs
Topic: Magleads
Replies: 0
Views: 3129

Magleads

Has anyone used Magleads? If so, are they any good?
Kathryn
by Kathryn
20 Feb 2020, 11:09
Forum: Recipes and Pracs
Topic: science week 2020
Replies: 6
Views: 2966

Re: science week 2020

I was really hoping for some ideas more specific to this years theme - Oceans - innovations and sustainability.
by Kathryn
18 Feb 2020, 09:20
Forum: Recipes and Pracs
Topic: Open Day Ideas
Replies: 80
Views: 26388

Re: Open Day Ideas

Could I please also receive a copy of the booklet.
kjones@cedars.nsw.edu.au
Thanks
We have already done many of the typical open day ideas. I was hoping to get some different ideas specific to this years science week theme of sustainable oceans.
Kathryn