Please let me know how to convert ul/l to umol/gram gas samples for 1000mL jar volume. Thanks..
I plan to do nifH targeted NGS (most likely paired end reads with MiSeq) to study free living nitrogen microbial communities in different tillage management system soil samples. I see as much as...
09 October 2017 1,773 1 View
Hi, We are working on 15N2 method to determine Nitrogen fixation by free living in Soil. However, the difference in between samples of natural abundance (NA) and Enriched (EN) by 15N2 is very very...
09 October 2017 4,814 3 View
Hi, I tried 15N2 method to determine free living bacterial activity in soil samples at 2d, 4d and 8d incubation period. However, i have did not find considerable activity. Does incubation period...
06 July 2017 3,186 4 View
Hi, Could you suggest me the primers set for nifH that can cover the good sequence variability of the nifH gene and capture the full diversity. Thanks
04 May 2017 6,419 2 View
Hi, I spent lots of time to figure out ARA method to determine nitrogen fixation by free living in soil. However, I am not getting significance difference between ethylene peaks of control (no...
10 November 2016 6,832 3 View
Hello, I need to calculate ul/l C2H4 in per gram soil. For instance, I got 7.098ul/l C2H4 in 1040mL jar at 250g of Soil. How to calculate this C2H4 in per gram soil.
10 November 2016 8,299 0 View
Please advise, I need to keep my soil sample for long incubation (15 days) to determine nitrogen fixing using acetylene reductase method. In between does any chance to became soil Anaerobic.
09 October 2016 8,033 2 View
test.trim.fasta does not showing any data content while using Mothur. Please advice..
09 October 2016 7,736 2 View
Hi, I will use PowerSoil DNA Isolation Kit for bacterial study. I wanted to know before use kit how to prepare soil samples. Currently, these are frozen in -20C. how long soil should keep on room...
09 October 2016 4,206 1 View
Dear Researcher, please let me know can bulk density of soil determine in the lab with air dry soil packed in to ring? Thanks
08 September 2016 7,553 11 View
Hello experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 View
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
Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?
06 August 2024 980 5 View
I am planning to collect human fecal samples for metatranscriptomic analysis using MGI. These samples are from indigenous people living in a region with high temperatures. I will have access to a...
06 August 2024 1,367 3 View
Are there any statistical methods to justify your sampling technique using SPSS or AMOS?
05 August 2024 9,153 4 View
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
I am conducting a qualitative study that uses interviews to investigate the perceptions of teachers about a particular leadership practice and I am focusing on 3 schools which have a total number...
01 August 2024 8,457 10 View
or we can collaborate
01 August 2024 6,705 2 View
I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...
29 July 2024 8,034 4 View
List down the various factors responsible and how does this effect the overall biogas production when it is related to Hydraulic retention time of the digester based on the feedstock?
27 July 2024 4,800 4 View