Ok, Chris.
I hope that Nick will answer of my questions.
Zinc
- Thread starter Acromaniac
- Start date
I hope that Nick will answer of my questions.
I got a feeling that Palintest unit is throwing out readings that ain't correct possibly.
I got a Hanna HI 83300, the measurement range of the available reagents between the Palintest & Hanna are pretty similar.
My Hanna unit with the Mn LR reagents (0-300 ug/L)tells me my Mn is "out of range" 300+ ug/L
My Triton ICP tests always show Mn < 2ug/L
I haven't dosed anything different to make my readings go off the chart.
Probably due to what's included in the book.
Maybe similar happening - maybe not too....might be comparing apples to oranges.
Anyway looks like unless i'm doing something wrong the Hanna unit is not of any use for this one.
.
2una
The plaintest test we use has high and low range i have the HR reagents i have ordered the low range reagents
I have tested NSW in high range but got no ready of course
Sustainable Reefs Cairns Australia.
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What plaintest is that modelI got a feeling that Palintest unit is throwing out readings that ain't correct possibly.
I got a Hanna HI 83300, the measurement range of the available reagents between the Palintest & Hanna are pretty similar.
My Hanna unit with the Mn LR reagents (0-300 ug/L)tells me my Mn is "out of range" 300+ ug/L
My Triton ICP tests always show Mn < 2ug/L
I haven't dosed anything different to make my readings go off the chart.
Probably due to what's included in the book.
Maybe similar happening - maybe not too....might be comparing apples to oranges.
Anyway looks like unless i'm doing something wrong the Hanna unit is not of any use for this one.
.
Sustainable Reefs Cairns Australia.
https://m.facebook.com/sustainablereef
Not Palintest - Hanna 83300 - works the same with the reagents - both seem to have the same elements/reagent base choice/test ranges/accuracy.
http://hannainst.com/multiparameter-photometer-and-ph-meter-hi83300.html
Earlier in the year when i asked Palintest questions all i got thrown was prices back so i vetoed them,That was when you were using the smaller Palintest unit i see you've upgraded since but it still uses the same reagents yes?
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Yes still the same reagents its not a bad unit for a quick test
We also use the sailfert reagents for phosphate
A zero reading on sailfert will read 0.05 on the palintest
Sustainable Reefs Cairns Australia.
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jason2459
Well-known member
Having high and low range reagents wont stop them from interference. These still look like they are made for freshwater applications.
Seawater is very complex to test and even professional analysts have a hard time. So, this is nothing at all against anyone.
I'm still unclear what type of ICP testing is done at the university? Or if ICP testing is not done what method is?
Jason ,
Where did you find
that the palintest is only for fresh water??
What do you want to know about the icp testing ?
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jason2459
Well-known member
Metals and Salts Combo - As Supplied (ICPMS)
Includes Basic (Aluminium, Arsenic, Cadmium, Chromium, Copper, Iron, Lead,
Manganese, Mercury, Nickel, Selenium, Silver and Zinc); Extra (Antimony,
Barium, Beryllium, Bismuth, Boron, Bromide, Cobalt, Lithium, Molybdenum,
Silicon, Strontium, Thallium, Thorium, Uranium and Vanadium) and Salts (
Calcium, Chloride, Magnesium, Potassium, Sodium and Sulfur).
7500 and the 9100 palintest dose test for saltwater use
Even the cheaper pool tester test saltwater this might sound funny salt water pools are salt water ....
But im not going to have a debate about what dose what
Let me know if you need more info on the icp
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jason2459
Well-known member
Not entirely true and misleading. Saltwater pools are not seawater pools. Brine, brackish, and Saltwater Pools are or can be totally different. The major, minor, and trace elements in seawater can create a LOT of interference.
I am glad to see it's ICP-MS. It is better at the major and slightly better at the minor elements then ICP-OES. From my understanding it still has a hard time with the trace elements with AA possibly being better. This is information I got from someone that specifically tests seawater. ICP-MS also needs calibrated and ran specifically for seawater otherwise results will be off as well. I've seen someone bring in a sample of their water into their work and get back results that were extremely off. Their ICP-MS was not calibrated properly.
I still have my doubts on accurate test results for Zinc and other trace elements.
This is NOT to be taken as a bad thing or against you or anyone else. Just trying to get a good expectation of the results.
As for the Palintest I am very interested in how accurate it could possibly be with seawater. From what I can see it's designed for "freshwater, wastewater, and environmental applications." Again, I'm sorry, I do not see it being useful for seawater particularly the trace elements.
I am highly interested in it if it is and would love to see how.
jason2459
Well-known member
And again, I am not trying to bully you or anyone else. I'm also not expecting answers right now. But if the testing procedures can not be explained in detail and showing the capability for accuracy then the entire paper will have higher levels doubts.
Yes, I'm sure there will be some skepticism but the more that can be detailed out the less of it there will be. As with all research.
Palintest will not give you the range that a Icp Ms test is in um
I use the plaintest test for
Phosphate from < 0 to 0.45
Nitrates from < 0 to 10
Calcium
Potassium
Maganese this is for high range
Copper zinc high range
Alk
Ozone
Iron high range
I find they all work fine
You can buy the saltwater reagents which cost a lot more
What i will do for you is get a Icp reading done and printed out and the 7500 and 9100 reading
Im not back until the end of January will do it then and post it up
Regards Christian
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Mate all good i understand
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Just a little photo to show that high trace dose not kill coral yet
Pic one led and natural light
Pic two natural light only
Just moved them from the main system to take the photos so Pe are not out yet
Sustainable Reefs Cairns Australia.
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Pic one led and natural light
Pic two natural light only
Just moved them from the main system to take the photos so Pe are not out yet
Sustainable Reefs Cairns Australia.
https://m.facebook.com/sustainablereef
greengeco82
Reefer
Thank you for sharing. It wasn't long ago that nitrates and phosphates were evil, and ULN systems were the fix. I am subscribed to both of your threads. Keep us posted!
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