Can total phosphate (TP) in soil be determined with UV-Vis Spectrophotometer?

Dear All, I would like to know if total phosphate (TP) and total nitrogen (TN) in soil can be determined with UV-Vis spectrophotometer or not. If somebody knows the method, I would like to get...

03 January 2021 7,662 6 View

How to model a fully Binary dataset?

I am having a difficult time modeling a binary dataset that my team has gathered. It is a dataset of different prescriptions per each patient and an outcome of a certain event. The goal is to...

02 February 2020 9,388 4 View

To detect antibiotics by UPLC- MS/MS, how to calculate the targets based on chemical structure to set up method?

Hello, to detect antibiotics residue in wastewater by UPLC- MS/MS, how to calculate the targets based on the chemical structure to set up method. I will detect 3 antibiotics. just need to put...

03 November 2019 9,658 1 View

Are there any published studies using the 20-item Values Inventory since it was first described in 2016?

IF SO, CAN YOU CITE THEM?

07 April 2019 4,062 1 View

Only one peak in heavy fraction is acceptable for qPCR result for DNA-SIP?

Hello, I am doing DNA-SIP for 13C labeling soil samples lately and I checked the SCI papers which have done DNA-SIP work. Generally, after ultracentrifugation, we do density gradient fractionation...

17 March 2019 3,387 2 View

Reliability and validity of an invented survey?

I want to implement a quality improvement protocol, which includes education, on the provision of oral care in an acute care facility. I would like to conduct a pre- and post- survey to the...

16 January 2019 9,250 2 View

Diffusion distance of rice root exudates?

I would like to know the diffusion distance of rice root exudates. How far can rice root exudates affect the microorganisms in bulk soil? I do not mean for soil depth, just horizontal distance. I...

24 November 2018 2,867 5 View

Is it possible to use SSR to investigate the bacterial diversity in soils?

06 August 2017 2,087 4 View

Does anybody know how to separate with highly polar compound and salts.

Recently, i isolate highly polar compound from n-butanol fraction. It's retention time is 5 min with buffer (0.1M H3PO4: 0.1M KH2PO4) 95 and MeOH 5. Because of i used buffer, compound will be...

29 June 2017 925 2 View

How do you increase metacognition through technology use? Can you give some examples of online or technology-driven program to increase metacognition?

Educators have been encouraging students to increase metacognitive awareness thereby increasing metacognition. With the advantage of technology, developing the metacognitive skills of students is...

08 February 2017 8,243 13 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 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

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

How can we obtain a modification factor for creep parameters?

I want to obtain standard creep parameters of salt rock by creep parameters of rectangular samples. Is there a modification factor to convert creep parameters of rectangular (prismatic) rock salt...

01 March 2021 7,131 1 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View