Is there a way to get rid of TEA in a TLC plate in order to do proper staining?

Dear colleagues: I have been trying to establish a few HP-TLC methods in the lab. In general, for quantification purposes, I prefer CuSO4+acid charring, to primuline staining. Lately I have been...

20 January 2021 9,019 1 View

What is the best device to identify gold and estimate the volume of a primary gold ore?

In the market, there are many devices that offer varying features to hunt natural gold. I am very suspicious if these devices really delivery what they say. The prices vary considerably and some...

16 November 2020 2,998 4 View

Heat and plastic in MTBE lipid extraction?

When extracting lipids with the MTBE method, the indicated temperature is RT. In addition, drying the samples in a speedvac is mandatory due to the presence of water and such procedure is long and...

14 October 2020 9,776 2 View

Increasing yield with DNeasy Power Soil Pro kit?

Hello! I'm extracting genomic DNA from Eucalyptus rhizosphere with PowerSoil Pro kit and the highest yield I'm getting is 3,5 ng/uL max. Also, the quality of DNA is around 1,3, wich is not...

30 August 2020 5,888 4 View

What is happening to my multiplex PCR?

I am developing a multiplex PCR assay to identify three strains of bacteria (A, B & C) of which two of them (A & B) are very close-related amongst each other. Two pairs of primers were...

27 May 2020 8,824 6 View

Protocol: Single-Locus and Multilocus DNA Fingerpriting, Bruford et al. 1992?

Hi everyone! I know this probably isn't the right place for this, but I have exhausted all other options to access this paper. Does anyone has a pdf copy of the chapter "Single-Locus and...

25 March 2020 2,540 5 View

Are there zinc-CYS parameters in CHARMM files? of has anyone generated these parameters?

06 March 2020 5,939 2 View

Can someone arrange me or indicate where I can find an IR solar panel data set?

I am in a master degree research and I'm in need of a data set for image processing of solar panels with defects (mainly hot spots), so I need to know if someone can help me and tell me where I...

06 January 2020 6,758 3 View

Has anyone had problems performing TRPS analysis of samples purified with TBS instead of PBS?

I work with EVs and I've been facing some issues when doing TRPS (Tunable resistive pulse sensing) analysis of samples that were purified with TBS. All TRPS buffers (Izon Science) are prepared...

20 November 2019 401 1 View

Recommendation on IoT devices for security-related MQTT experiments?

Hello, What IoT devices would you recommend for MQTT experiments? Further recommendations on Smart home devices or simulators for security-related MQTT experiments will also be appreciated.

09 April 2019 8,333 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View