Does anyone still have Agilent HPLC-Chips: G4240-61002 Infusion for mass spectrometry?

29 January 2024 0 5K Report

We have an old Aglient Q-TOF mass spectrometer with Chip cube nanospray source. We need Agilent HPLC-Chips: G4240-61002 Infusion as spare parts, but Agilent stopped producing them in 2023. Does anybody still have some (new or used, but still functional) HPLC-Chips in the drawer?

Best wishes, Peter Dörmann

Badges
Science topic

More Peter Dörmann's questions See All

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future ?

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...

23 February 2021 7,842 1 View

No mRNA increase in PCR after successful transfection in ARPE-19 cells ?

Hello, i am a bit curious about my results. I transfected the human cell Line ARPE-19 with a Plasmid containing a GFP tagged p53 (p53-GFP, Plasmid #11770). After 24h i checked under the...

18 February 2021 3,811 7 View

Do there exist stand-alone permanently in-ground soil-moisture sensors with an installed GSM module, for outdoor use?

Am searching for a stand-alone permanently in-ground soil-moisture sensor with an installed GSM module, for outdoor use. The idea is for the sensor to send a moisture reading via a cellphone text...

04 February 2021 2,047 4 View

What is the easiest way to remove the water from organic solvents?

Hello everyone! I have one question. I have couple of solvents and all of them were pure when they were bought but after some months or years of storage after opening I am not 100% sure about...

03 February 2021 2,154 8 View

Virus neutralization assay in BSL2 lab?

Hi I want to set up a virus neutralisation assay such as PRNT or FRNT at my lab (BSL2), but im uncertain of the bio safety requirements that has to be fulfilled in order to work with...

01 February 2021 5,626 3 View

Using LINK11 to Apply force in ANSYS APDL?

I'm trying to use LINK11 to apply a force as if it was a cable pulling a structure twowards a point in ANSYS APDL. When I solve the model, the deformation of the overall structure is far too...

30 January 2021 7,919 1 View

Cytoflex Flowcytometer, clotting issues and cleaning procedures?

We have been having clotting issues with our Cytoflex S from Beckman Coulter. Back in December 2020, we had to have the tubing system and sample needles replaced, but we are beginning to observe...

28 January 2021 6,897 2 View

Difficulties purifying Outer Membrane Vesicles using a Sucrose Density Gradient: Unable to detect any protein after this process?

I'm currently trying to purify Outer Membrane Vesicles (OMVs) following their extraction from the bacteria I'm working with. After the initial extraction the concentration of protein seems good...

27 January 2021 6,852 3 View

What excamples do you know wasting unused contents of "empty" packaged products?

Most of us use tooth paste more times a day. The empty tube we throw away. I wondered how empty the tube really is. This does not sound being Research? I began to collect empty tubes...

19 January 2021 808 3 View

What is the largest disadvantage in using of face masks at present? What would you like to be improved?

We all use face masks many hours a day. I wonder what are your items you like to be improved. We have the opportunity to write an application for support to a sponsor. Your answers will help us a...

18 January 2021 1,311 4 View

Handheld Portable Raman spectroscopy systems - recommendations and experience?

Hi all, I am looking for some general feedback and information from those that have experience using handheld/portable systems? I am looking at the prospects of using an off the shelf system from...

07 February 2021 9,691 3 View

Why can't I run sample more than 40 mins in Agilent HPLC even after loading method for 45 mins?

Hi, I am using an Agilent 1200 series and Chemstation software. When I try to set run-time more than 40 mins (for ex. 45 mins or more than that), run-time is getting over within 40 mins even after...

26 January 2021 7,136 3 View

2.6 Drying gas flow controller cannot regulate the requested setting after a fixed amount of time?

We keep getting this error on our Agilent 6470 TQ. We were told it could either be our N2 generator or filter traps. We've called the manufacturer of our generator and they believe it's working...

21 January 2021 2,969 1 View

Where can I buy Agilent software?

Hello. I have old agilent instrument, 6340 with 1100series HPLC, LC-Ion trap MS. We have software for LC, chemstation, but, not for MS. I asked Agilent korea if I can buy some software, and they...

05 January 2021 1,970 3 View

Why is the gene expression of one sample uniformly higher than that of the other in the microarray gene expression analysis?

Hi all, Currently, I'm working on a project to analyze gene expression from RNA which is extractred two different samples by microarray. The results showed that almost all gene expression was...

12 December 2020 3,918 2 View

What is the reason vacuum performance degradation of the AAS analyser?

I'm working with Agilent 200 series atomic absorption spectroscopy in the lab. There is no problem when I first started the analysis. As time passes, for example half an hour after starting the...

01 December 2020 3,867 3 View

I'm having difficulties with RT shifts of 0.25 min (15 sec) in a urine sample?

I performed 10 repeat injections and separations of a single urine sample on a reverse phase HPLC-DAD system. Everything was kept constant (Flow rate 1ml/min, column temp 35C, injection volume...

14 October 2020 1,173 3 View

How I can to record a spectrum with Agilent MP-AES 4210 over the entire operating wavelength range?

We have a pretty good device. To carry out the classification analysis, it is necessary to register the spectra of the samples in the entire operating wavelength range of the device. Standard...

06 October 2020 9,083 2 View

Why is only one of my solvent channels not pulling solvent (HPLC)?

I have an agilent 1260 infinity Quaternary Pump VL and am having an issue with my "D" channel not pulling an solvent through it. So far I have replaced the tubing from the solvent to the vacuum...

28 September 2020 2,153 3 View

Why is the pressure slowly increasing when using a Hiplex Ca column?

We recently installed a Hiplex Ca Duo Column from agilent for carbohydrate determination. It was working fine until a week ago, when the pressure of the column started to increase very slowly. As...

03 September 2020 1,733 2 View