u/SolidRaider

Hi all!

Well, the post almost became a chat between pixelwhip and me, and it changed the focus. so the title isn't representative of the discussion.

My main concern now is if it is worth to keep escalating in poundage, given that with my current setup I tip aim to the gold and reach gold. Current setup: Barebow, 32 lb Delta C2 limbs, ~33.5 at fingers, 700 spine arrows 30". 0 (zero) crawl, I almost touch the knock. arrows are a little weak according to bareshaft shooting.

would it be worth to escalate to 36 lb?

Because the other and simpler option is to cut another inch the arrows and hence i would tip aim gold with 2 mm of crawl, I estimate, which would be optimus.

thanks!

Hoy me llamaron por 20ma vez del Santander para ofrecerme una tasa del 75% TNA en un préstamo preaprobado, adornandolo como si fuera algo buenísimo.

Tengo 2 consultas puntuales:

1. ¿por qué hay tanta diferencia entre los intereses de un plazo fijo y los intereses de un préstamo?
2. ¿por qué llaman para ofrecerlo? ¿Hay gente que agarra esos números?

Es tan alto que pareciera que no quisieran que lo saques. Pero se contradice con el punto 2 de llamar gente para que lo saque.

Gracias.

¿Estarán sin vender un pingo?

Igual el precio base creo que subió, andaba por 9-9,5 palos y ahora está a casi 10.

Hello!

We have a Dionex Easion CI, doing cations, chemical supression.

Thing is, base conductivity was ~1.8 uS before installing autosampler, and very steady.

Now we have three problems.

1. Conductivity stabilized at 15 uS and then SLOWLY went to 7 uS (after 24 hs)
2. Baseline is not steady
3. The peaks broadened a lot. Ammounts are still decent (around 5% deviation), but shape is good only for the first 2 cations, but after that, they elute very broadened.

I'm suspecting of the autosampler, could that be the cause? Maybe problem is elsewhere, but it starded just as we installed autosampler.

Here's an example of a chromatogram of a pure water injection, it has a very random tendency. As you can see, it rises 0.2 uS (wich is a lot) and then drops 0.5 uS. And maybe the next injection does the same, or maybe it will only rise, who knows.

https://preview.redd.it/r51te5459sih1.jpg?width=1280&format=pjpg&auto=webp&s=91b689b95b39724e0077c5a78524e42ab634ed0d

And here's a chromatogram of a Control Point.

https://preview.redd.it/nwp77wct9sih1.png?width=1280&format=png&auto=webp&s=4d51a839841ee015ae1113e3ebaa0a04e1e934d7

Hi everyone,

I'm from Argentina, where the higher education system is a bit different.

I have a "Licenciatura en Química", a 5-year degree roughly equivalent to a Bachelor's + Master's in Chemistry. It's heavily focused on government research, and also could obviously do private laboratory work. In practice, though, many industrial lab positions can also be filled by chemistry technicians, so the degree doesn't always provide the professional advantage you might expect.

I've been working in industry in several roles, pharmaceutics, geochronology, lithium, and I'd like to move beyond purely laboratory roles into environmental or process-related work.

Out of personal interest in environmental issues, I'm considering a Master's in Environmental Engineering. I know it wouldn't make me an engineer or grant me the legal professional rights of one, but I wonder if it could still broaden my career opportunities and make my profile more attractive for environmental, industrial, or water-related positions.

I think I'm going to do it regardless. It's affordable, offered by a well-respected public university, and I genuinely enjoy the subject. But I'd be lying if I said I didn't hope the effort would also pay off professionally in the long run.

Has anyone here followed a similar path? Do you think this kind of master's is worth it from a career perspective?

Buenas.

Dónde se puede? En el Campo Alegre está permitido hacer un asado?

Y sino dónde? Que esté lindo. Para no morir en un camping con quichicientas personas.

Hi.

Waters UPLC Aquity H Class.

Last post, yesterday, I received many help and I took everything into consideration and wanted to share results. i'm very new at this. Problem is: high and unstable pressure of the system. Always rising Here we go with today's tests:

Tests 1, 2 and 3: Replacing column with a fitting, and purging 4 lines with MeOH, and then monitoring pressure with flux increments until 1 ml/min. Test 2 was the same but with ACN. Test 3 same but using working mixture: solvent A: 0,1% formic in water and solvent B: 100% ACN. The system runs in a 70:30 mixture of A and B. below picture with ACN.

https://preview.redd.it/g5qhe4cjshah1.png?width=1280&format=png&auto=webp&s=0dc230cd0c97db6417caa38f94e8d0d09860d629

Pressure is steady, reaching it's value quickly too in all cases and remaining steady. difference is: in Test 3 there is a "clack-clack" coming from the valve which receives all 4 solvents tubings. it's 2 noises, seems like an "open-close" of a valve, and it accompanies the bomb cycle. 1 bomb cycle = 2 "clacks". seems quite normal since it's mixing A and B, but I'm not used to the noise, maybe it's a bit noisier than normal.

Well, that being said, the system seems to perform bad or well?

For us is well, so we proceeded to insert the column, which made things don't work quite well: Pressure stills rising. Using that 70:30 mixture, we slowly went to work flux, which is 0.4 ml/min. Pressure has been arround 10600 and has a delta of ~50, without stabilizing ever, and again slowly - slowly- rising. in 15 minutes of writing this, now is 10800 psi.

https://preview.redd.it/bsec7qmlshah1.png?width=1280&format=png&auto=webp&s=66c939d18b95315f4253e653faa52243a131c1e7

Could we say this is a column issue, or would that be a rushed and erratic conclusion?

extra!

in the test without column, we noticed that the system pressure has a little oscilation (around 10 psi) when pressure is below 600 psi. is that normal? after 600 psi it seems to accomodate with an oscilation of 2-3 psi only. it does it regardless of the solvent. it's perfectly coordinated with bomb sounds. a picture here:

https://preview.redd.it/d5wlnewgshah1.png?width=1599&format=png&auto=webp&s=d4cd962c8303a9320cf13dfd8e97ee3d2232ee4d

Thanks very much!!

Hello there. I'm completely new at this.

At my lab, we have a Waters Aquity class H, and run a mixture: 70 0,1% formic in water(solvent A) : 30 acetonitrile (solvent B). flux 0.4 ml/min. C is methanol.

The UPLC has been used previously by another branch of the company, and it was installed here a month ago, and validated by a technician. but unfortunately, last week we saw this:

1. Pressure with 70:30 is higher than usual: +12000 psi at work flux, where it should be around 8000.
2. Pressure with 70:30 mixture is unstable, and seems to be always slowly rising. whilst with 100% acetonitrile, it reaches a value and remains very steady. for example, at 0.1 flux, it achieves 900 psi in 30 seconds, while using 70:30 goes to 2600 psi and starts going up... it can go 15 minutes and still rising.

we purged the column with acetonitrile a lot, also backflushed it in case we contaminated it, and no results. Finally we used another column. But the same replicates in both columns... which is very weird for a novice like me.

We did some leak tests, surprisingly solvent A (water with 0,1% formic) passess accumulator and primary tests. But B and C pass only the acumulator test, not the primary. Leak rate is 460 nL/min and 213 nL/min could that test have something to say?

I'm currently sonicating the check valve in methanol, thanks to a suggestion of laboratory boss.

please let me know if there is information I'm missing in order to clarify. best, thanks in advance!

Estoy queriendo vender la moto en Salta Capital y solamente hay a partir del 15 de julio 🤌🏻.

Cómo puede ser tanta demora?

Hey all,

I’m currently shooting barebow with a Gillo GX riser and WNS Delta C2 32 lb carbon foam limbs (about 33 lb on the fingers), using uncut Victory VAP V6 700 spine arrows. I’m planning to move up to 36 lb eventually as I advanced to 50 m.

Right now I also know my arrows are on the weak side. I’ll be replacing them eventually, but I might do it before changing limbs.

My main questions:

1. Is it safe and mechanically fine to run these 32 lb limbs up to ~36 lb using the limb bolts on a GX riser, or does that push the limbs outside their intended working range? (I still have ~3 turns available. Gillo states ±15% adjustment is possible, but I’m not sure how this holds up in practice.)

2. For tuning and consistency, is it better to stay near the minimum bolt setting (as I currently am), or is it actually preferable to use more of the adjustment range and increase preload if needed?

3. For a future upgrade at 36 lb, what would be a meaningful step up in limb quality without going straight to top-tier? Any recommendations on models or materials (carbon foam vs wood core vs other) would be appreciated.

Please keep in mind prices in Argentina are absolutely crazy, so when I say one step better than my limbs, I really mean it.

Thanks a lot!

Buenas!

Mi pareja (1,57 m) quiere comprarse una bici más que nada para andar por la ciudad. Quisieramos que no sea algo berreta (no renegar con cosas de mala calidad) pero obviamente tampoco necesitamos lo mejor de Shimano.

Nos recomendaron BICICLETA SPY BULLET SPORT 29ER 1X9 TURQUESA TALLE S pero sale $789.000. Obviamente que es una buena bici y cumple, pero para mí algo como: BICICLETA SPY BULLET SPORT 21V MEC 2026 también va como piña y por $472.000

¿qué opinan de eso? y sientanse libres de sugerir otras también por favor!

Presupuesto máximo: aldededor de $500.000.

También dudas:

• Pensamos comprar talle S, ¿pero el rodado qué onda? para 1,57 m
• Si la horquilla amortiguadora no es muy buena y bloqueable, es un pijazo andar. Y antes que eso, en la ciudad, convendría una fija. ¿qué opinan?

Gracias!

Buenas cómo están? me llegó un mail diciendo que debo patente de hace como 4 años de la moto, lo cual es imposible porque ya tuve que pagar todas las patentes cuando hice la transferencia y la vendí, y encima la cambié de provincia en la venta (ni loco te dejan cambiarte de provincia si no tené todo pago en la anterior)

La moto fue comprada en Santa Fe y vendida en Salta. Además la compra venta se terminó correctamente y ya no figuro como titular de la moto.

A alguien más le pasó lo mismo??

Hello. I'm having this problem (aluminium thred with brass screw). The hexagone for the allen wrench is totally rounded. I tried to do some little indents (top and down) to put a flat screwdriver but it's not happening.

Now I'm planing to put WD-40 and then use a screw extractor.

Was thinking also of heating the aluminium previous to use the screw extractor, but I don't know if it would benefit the operation.

I wanted to know if any of you had some similar experience and how did you manage to solve it.

Note: The screw is a grub screw, that pressures against a stainless steel bolt. The entire piece is an riser (archery), which it would be very important to preserve.

https://preview.redd.it/pg1j5zbg9k3h1.jpg?width=1311&format=pjpg&auto=webp&s=2044bd3a1fe00451cd3e218a4a8486741b7626ff

Hello. I'm having this problem with my riser. (Gillo GX - aluminium with brass screw). The hexagone for the allen wrench is totally rounded. I tried to do some little indents (top and down) to put a flat screwdriver but it's not happening.

Now I'm planing to put WD-40 and then use a screw extractor.

Was thinking also of heating the aluminium previous to use the screw extractor, but I don't know if it would benefit the operation.

I wanted to know if any of you had some similar experience and how did you manage to solve it.

Note: The screw is a grub screw, that pressures against the limb bolts.

Note2: The bow works well, the limb bolt is firm, and I can even tight/loosen it. It also has another grub screw on the other side. But I would like to solve this.

Hello there!

I've been struggling really hard in aiming decently at those distances. At 30 m I get mostly all 10 and 9, sometimes an 8. (let's say every 12 arrows, comes an 8)

At 30 m I align eye-arrow-target, and can see the entire target at the sides of the string (string is in the middle). Whenever I shot bad it's because of bad release or torquing the bow, which is also noticeable in the arrow flight. But in the end, I do feel really aware of where I'm shooting.

But at 40 the target just dissapears behind the string and hence it feels like very random.

Any suggestions? Bad concept of aiming? I've heard it's supposed to be more "a feeling", but it just doesn't seem right when the entire target disappears behind the string.