Lab Guy Home · Terms of Use · Privacy Policy
Visit SP Bel-Art website, a part of SP on the web by clicking here
   SP Scienceware Newsletter | Contact Us | (800) 423-5278

 

June 12, 2020
Image: BEL-ART PLASTIC PESTLES FOR MICRO-TUBE HOMOGENIZER SYSTEM; 1.5ML, INDIVIDUALLY PACKAGED (PACK OF 100)

Tube Compatibility for use with Fungal DNA extraction

Dear Lab Guy - Our lab bought your product CAT No. 650000002 (1.5 mL pestle). We will use it for fungal DNA extraction. We need a Micro-centrifuge tube compatible with this pestle (tip of the pestle must accurately fit with the bottom of the tube). Do you have any product like this? - Afjalus
June 11, 2020
Image: 11604_Polystop_Dropper_Bottles - SP Scienceware

Looking for an Easier Solution to Difficult Liquid Sampling

Dear Lab Guy, I am looking for a system that can take a sample dripping from a rod that has been dipped into a reactor and not expose the operator to the dangerous solvent in the media. Now the samples are taken by lifting the rod in a ventilated tube with a hole in the side and a 25ml glass bottle is inserted by hand and filled only to a very small part. The bottle gets product on the outside and the ventilation is not enough to protect the operator. If you have an idea for taking a sample, without introducing shear forces on the media, since its a suspension for making gel, I would be very grateful. My idea right now would require a small (1-2cm2) sample scoop that could be inserted under the lifted sample rod and then enclosed in the same type of bottle that is used today, eliminating the spill on the outside. Kind regards - David E
May 24, 2020
Image: Desiccators – How to Choose

Achieving a 100% Humidity Free Environment: Vacuum and Gas-Purge Desiccation

Dear Lab Guy, I’m using a desiccator cabinet with plenty of desiccant, but it doesn't seem to produce a dry enough environment for my use. How can I achieve a lower relative humidity? Sincerely, George G.
May 14, 2020
Image: Immersion Lines

What is the Difference Between Partial Immersion and Total Immersion?

Dear Lab Guy, I’m trying to buy a thermometer and I see reference to partial immersion and total immersion. I have no idea what that means! For total immersion do you need to completely immerse the thermometer? How far do you have to immerse a partial immersion thermometer? Sincerely, Dominick
April 16, 2020
Bel-Art Lab Companion cabinet style vacuum desiccator F42400-4011_12 - Ask Lab Guy

Vacuum Desiccator Takes a LONG Time

Dear Lab Guy, I have the F42400-4011 35 liter clear cabinet desiccator that I just purchased. I got it to pull the vacuum I need using an inline vacuum pump that has a free air capacity of 3.2. My dilemma is that it takes more than a minute to evacuate the chamber. Is this just pretty much the standard time or could I improve on this with a larger capacity vacuum pump? Thank you, Melissa E.
March 29, 2020
Image: H50000-0002 Small Molded Fume Hood at Lab Guy

Can I Mix It? Working Space in the Benchtop Fume Hood

Dear Lab Guy, I need to see a video of the Bel-Art H50000-0002 in action. I need to mix the contents of qty=2, one gallon cans into a common 1 quart container and need to see how much real working space is in the device. Thanks, Mark
February 28, 2020
Image: Flowmi Cell Strainers - pipette tips - Ask Lab Guy

Getting a Tight Fit with Flowmi Cell Strainers

Dear Lab Guy, I have FlowmI cell strainers cat# 136800040. They say they are designed for P1000 pipettes. I want to use the Rainin 300pipette. Will the fit be tight enough? Am R.
February 9, 2020
Image: Roxy M Repeating Pipettor 37310-0000_54

Dispense Liquids Accurately and Consistently

Dear Lab Guy, I am looking for a pipettor that can be adjusted to dispense liquids in .5ml increments. I purchased one of the Roxy M pipettors recently but I am not sure if this is really what I am looking for? - Ben F.
January 9, 2020
Bel-Art Polyethylene Buchner Table-Top Funnel with Coarse Porosity Fixed Plate

Air Leaks in a Buchner Funnel

Dear Lab Guy, I have a 18” table top Buchner funnel. I have air leak where the plate sits inside at the wall. Is there something I can use to seal this? Best regards, Josh
January 6, 2020
Image: SP Scienceware - Magnetic Bead Separation Racks - Ask Lab Guy

Racks for Magnetic Bead Separation

Dear Lab Guy, Just wanted to make sure. Are the magnetic bead separation racks compatible with 50 nM magnetic beads that providers stemcell and miltenyi Biotec sell? Thank You. - Chad R.