Have you ever tried to quantify sterols in rice using GC-MS?

14 February 2013 0 6K Report

I am trying to quantify sterols just up-stream and down-stream the Cycloartenol in Rice. Do you know which ones are the most abundant ones in Rice? and which ones are the most easily detectable?

Badges
Science topic

More Patricia Baldrich's questions See All

How do I add more research done?

How can I add additional published work?

03 June 2024 4,045 2 View

Do you know of any questionnaire that can measure the glass ceiling in female engineers and another that can measure their work performance?

Greetings everyone, I am doing a research project on the effect of the glass ceiling on the work performance of women engineers in the construction sector. Do you know of any questionnaire that...

01 June 2024 7,226 0 View

Is my protocol effective for extraction of protein from cell fractions?

Fractionation 1. Scrape cells and collect by centrifugation (500 × g, 5 min, 4 °C) 2. Resuspend cell pellets in lysis buffer and incubate on ice for 10 minutes 3. Centrifuge at 500 x g for 5 min...

25 March 2024 6,347 3 View

The connection between learning and physical movement for students with disabilities?

I am writing a master's paper looking at the connection between learning and physical movement for students with disabilities. Have you run across any recent studies or information?

12 March 2024 835 0 View

What is the most efficient way to exchange inside conditions of liposomes?

I want to dry down a large quantity of liposomes and aliquot and freeze. I want to be able to play around with the inside conditions, changing buffers, dyes, etc. I can make a 2X buffer to hydrate...

11 March 2024 7,157 0 View

¿Qué técnicas de investigación podríamos utilizar para estudiar los abusos sexuales en menores?

Pretendo investigar cuál sería el método que más se adapta a la investigación, todo ello desde una perspectiva cuantitativa y cualitativa. Teniendo en cuenta los estereotipos de género y las...

11 March 2024 7,376 0 View

Use of metronidazole in the treatment of leg ulcers ?

Use of metronidazole in leg ulcers

01 March 2024 5,775 2 View

Is there a non pharmacological treatment for infected leg ulcers?

non pharmacological treatment for infected leg ulcers

01 March 2024 8,671 2 View

Does this graph look right for the Electrochemical workstation anaylsis?

I used: .01M Phenylalanine. .1 M Ascorbic acid

20 February 2024 6,790 0 View

Immobilization of E. faecalis biofilms on glass slides for AFM imaging in liquid?

I'm trying to scan the surface of E. faecalis biofilms on glass slides however when using AFM in liquid mode, I get nothing. My theory is that E. faecalis produce weak biofilms that lift off as...

20 February 2024 4,959 0 View

Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...

11 August 2024 9,801 2 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Can I use a HisTRAP column for affinity chromatography?

I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...

07 August 2024 505 3 View

AUX gas reading problem on QE with full MS and PRM method in one run?

Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...

06 August 2024 4,953 0 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I inoculate a lyophilized anaerobic bacteria into the culture medium without an anaerobic chamber?

There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...

05 August 2024 4,945 3 View

Why is TLC not a form of partition chromatography?

Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?

03 August 2024 7,035 3 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View