Hydrocarbons in Soil?

More Syeda Hina Zainab's questions See All

Why in 2D image created by discovery studio 2021, the halogens appear as alkyl group?

In my molecule there is Chloro group at 2-position of phenyl ring, but in 2D image it appears as methyl showing no interaction.

28 July 2024 734 0 View

HEC 1A & HEC1B Cell Lines?

Hi, Kindly guide me that how many cells of HEC1A & HEC1B Cell lines should I seed for Wound healing assay and which plate type is recommended 6, 12 & 24?. Articles suggested mainly 24...

20 July 2024 4,143 2 View

How does the catalase enzyme contribute to the process of photosynthesis in plants?

كيف يساهم انزيم الكاتلاز في عملية التمثيل الضوئي في النباتات؟

09 July 2024 7,512 1 View

What is the role of catalase enzyme in plants?

ماهو دور انزيم الكاتليز في النباتات؟

09 July 2024 5,824 2 View

How does lighting affect growth regulators in plants?

كيف تؤثر الإضاءة على منظمات النمو في النباتات؟

09 July 2024 4,197 2 View

Can untransformed pET22b be isolated from five days old pellets stored at -20°C?

I've pelleted down the overnight ampicillin supplemented cultures of DH5ALPHA for pET22b isolation 5 days ago and stored them on -20°C without adding any buffer or glycerol. Would the cells be...

09 June 2024 6,479 2 View

ICDAR 2011 dataset?

I wanted to know if anyone can share the ICDAR 2011 dataset for text segmentation?

08 June 2024 5,578 2 View

How to get Turbidity from Turbidity Index?

Hello, Using the satellite imaginary Ive calculated the Turbidity Index of a waterbody. Is it possible to convert NDTI into Turbidity (NTU)?

03 June 2024 4,188 1 View

How to avoid clumping of Pierce Protein A/G Magnetic Beads when added to Co-IP samples?

Hi, during my co-IP experiment after blocking the Pierce Protein A/G Magnetic beads in a 10% BSA solution. I add the beads to my samples (which were incubating overnight with the co-IP antibody)...

29 May 2024 2,877 0 View

How can I avoid interaction of plant based reducing agents to final nanocomposite for in situ preparation og Ag doped GO-Fe3O4 nanocomposite?

Can anyone comment on the following concerns I want to synthesize Ag doped GO-Fe3O4 nanocomposite in situ using plant extract as green method for Ag+ reduction. What will be the effect of plant...

23 May 2024 5,244 2 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

Abdelhak Maghchiche

Yes, hydrocarbons in soil can be detected using alternative methods like FTIR spectroscopy, UV fluorescence, photoionization detectors (PID), or non-dispersive infrared (NDIR) spectroscopy, which offer faster, often field-portable screening options. These methods involve soil sample preparation followed by spectral or fluorescence measurement and comparison to calibration standards for hydrocarbon presence and concentration.

Syeda Hina Zainab

Abdelhak Maghchiche will FTIR gives précises result as GC-MS?