Australia's Science Forum

Hi Fellow Lab Landers, Just wondering has anyone ever tried using a vacuum sealer to keep left over agar plates, and seal up chemicals to stop them absorbing water. :w00t: If so have you had much success? I was thinking of getting one but thought Id see if any bright spark had this idea and tried it...

Hi There,

I was just wondering if anyone out there uses anything other than chemwatch or one of its variants for their sds and chemstore stocktake Im just over it and find it the most unuser friendly program ever MariaC

Hi Guys, has anyone been able to source the GHS Pictogram Stickers for the chemical bottles, I have run out of oxidizer, MDG etc and am not keen to buy the old ones if the newies will be out soon. Any feedback?

MariaC

Hi, welcome back! :D Im in the second set of refurbished labs in my short 4 year career as a lab tech! :w00t: Very nice but it would of been nicer if they were actually finished BEFORE we :w00t: had to move back in and run classes! We are doing the catalase/ hydrogen peroxide prac but bought the cat...

I just want to congratulate the organisers of this day! It was fantastic, learnt heaps, great location and put names to many faces Thanks again MariaC

Hi All, looking for some info, I couldn't find phenol red solution to purchase so had to buy as powder. Do any of you have any tried and tested recipes for making it up into solution. I only need small amounts for the disease prac. Ta muchly MariaC

Im coming but it has to go through so many hoops to get there! MariaC

HOD said yes, now to wade through the twenty tonnes of paperwork to get it sent off!! Add me to the list! MariaC

About 1100, K -12 but we have IB and HSC classes!

There's two of us here, me fulltime, another 15 hrs a week and that still only brings us up too 0.35!!! MariaC

I have two labbies, myself fulltime and another 15 hrs week. You need to look at the post "Lab technicians Standard drafts" it has the formula but it is only a recommendation at the moment not law, but may be useful to quote in negotiations! MariaC

Thanks Rae, have changed and informed the HT, thank goodness for Chemtalk, MariaC

Absolutely Id point the teacher to DPI NSW website to do some reading on Hendra, all us horse owners are to avoid contact with any bodily fluids! Even saliva which is difficult if your horse likes to lick you. MariaC

Umm and NSW State schools didnt participate because the State Gov wouldn't let us, wonder why Prahaps they had something to hide MariaC

Yes only alitte acid in distilled water, then rinse thoroughly with distilled water and allow to dry before storing away MariaC

My last lot came out a funny grey/pink, I thought I may of airated in too much by using a whisk so made a second lot using a stirring rod and it came out the same colour but they both still worked fine so dont worry too much MariaC

Hi All, just wondering if any one had sourced Bromocresol Green SOLUTION lately. Serrata and Southern biological my normal one stop shops only sell dry and we use so little I just want 100mls of solution as that will last for years. thanks for any input MariaC

Hi, from my understanding true nutrient agar is for growing bacteria, agar made with vegemite etc is more for mould growth as its not specific enough. That doesnt mean to say you cant grow bacteria in it! :w00t: but if you are doing senior bio and growing specific bacteria you are best to use NA :th...

:D Not all pH meters require calibrtion everytime they are used, many esp those for data loggers are best left alone and many of the newer ones come factory set. If you do have to calibrate, do over a range eg pH 4, 7 & 10 and you can check periodically or before they are used that they are corr...

Thanks for the answers, it only had to be done "rough" for Yr 7, but wasnt sure of ratios so as it would set. All done now, will let you know how it goes on Mon! MariaC