Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

Filter Systems - Geochemistry I - Lecture Slides, Slides of Geochemistry

Bhupendra Narayan Mandal UniversityGeochemistry

In these Lecture Slides, the Lecturer has tried to illustrate he following points : Filter Systems, Tested, Description, Designation, Ion Chromatography, Acrodisc, Supor Membrane, Acrodisc, Fibre Prefilter, Polypropylene

Typology: Slides

2012/2013

Uploaded on 07/23/2013

sharath_69
sharath_69 🇮🇳

4.5

(8)

75 documents

1 / 10

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Millex-LS 5 µm prefilter or
Milles-SV
M-3-S
Millex, HN nylon
M-4-S
Millex HV, hydrophilic
Durapore
M-2-S
Sterivex capsule, hydrophilic
Durapore (polyvinylidene
fluoride, PDVF)
M-1-S
GHP Acrodisc, hydrophilic
polypropylene
G-3-S
Acrodisc GF, nylon with glass
fibre prefilter
G-2-S
Ion chromatography Acrodisc,
Supor membrane
G-1-S
DescriptionDesignation
Filter Systems (0.45 µm) tested (12 in total)
Docsity.com
pf3
pf4
pf5
pf8
pf9
pfa

Partial preview of the text

Download Filter Systems - Geochemistry I - Lecture Slides and more Slides Geochemistry in PDF only on Docsity!

Millex-LS 5 μm prefilter or

Milles-SV

M-3-S

Millex, HN nylon

M-4-S

Millex HV, hydrophilic

Durapore

M-2-S

Sterivex capsule, hydrophilic

Durapore (polyvinylidene

fluoride, PDVF)

M-1-S

GHP Acrodisc, hydrophilic

polypropylene

G-3-S

Acrodisc GF, nylon with glass

fibre prefilter

G-2-S

Ion chromatography Acrodisc,

Supor membrane

G-1-S Designation Description Filter Systems (0.45 μm) tested (12 in total)

Recommended:Recommended: WhatmanWhatman all-plastic syringeall-plastic syringe with Millipore with Millipore DuraporeDurapore Capsule (M-1-S)Capsule (M-1-S) or or MillexMillex Membrane (M-2-S) and HDPE bottleMembrane (M-2-S) and HDPE bottle

Acidification impractical inAcidification impractical in

the field the field……....

• Sampled 5 local rivers/streams,

filtered and created acidified (0.4%

HNO

3

) and unacidified subsets

• Tested element recovery in samples

acidified after 2 months of storage and

then left for 7 days in original bottle

• Used different [HNO

3

] of 0.4, 1, 2, 5,

• Used HDPE, PP, FEP, PET, all in

triplicate

Elements not lost from any sampleElements not lost from any sample over 2-month period include: over 2-month period include: B, Ba, Ca, K, Li, Mg, Mo, Na, Ni, Rb, S, Sb, Si, Sr, U, V Elements with greatest loss over Elements with greatest loss over 2-month period include: 2-month period include: Mn, Fe, Al, Ti, Pb, REEs, Cu, Zn

Pb Rideau River Bottle Type HDPE PP FEP PET Recovery (^) **(%) 0 20 40 60 80 100 120 140 Unacidified

  1. 4 % < 1 Day
  2. 4 % 7 Days 1 % 7 Days 2 % 7 Days 5 % 7 Days 10 % 7 Days
  3. 4 % 127 Days 60 ppt DL 10 ppt**

Recovery of Mn, % 0 20 40 60 80 100 120 140 No a cid Acid [Mn] ranges from 0. 1 to 317 ppb

Pyrolysis/IC for F, Cl, Br, I, S -~100 mg of sample -Several min of pyrolysis time, ~15 min analytical

- DLs in order of 0.5 ppm