Moisture Content Determination

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Moisture Content Determination

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Moisture – What

What is Moisture? Scientifically stated, moisture is defined as the mass

of LIQUID MATTER per unit mass of dry material Simply stated, moisture is Liquid Matter diffused in a

relatively small quantity

Types of Liquid Matter Water Fats Oils Alcohols Organic Solvents Products of Decomposition

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Moisture – Why Measure Contd...

Why measure the Moisture Content? Contd... Positive Attributes of Moisture

Makes material processing possible & adds efficiency

Moisture is used as a binder in bulk material processing & homogenizing

Natural lubrication in organic materials

Negative Attributes of Moisture Dictates shelf life Makes material susceptible

to microbial & fungal activity Causes oxidation & chemical reactions during material storage

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Moisture Analysis

What is Moisture Analysis? Determination of Moisture Content Many users confuse moisture content as

water content, this is not true Moisture content determination does not

make a distinction between water & other

volatile components

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.

Moisture Analysis

THE OHAUS SOLUTION

TO

MOISTURE CONTENT DETERMINATION

MB45 MOISTURE ANALYZER

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Models

Model MB45 MB35

Capacity (g) 45 35

Readability (g) 0.01%/0.001 0.05%/0.005

Temperature

Range

50DC to 200DC with 1DC increments

50DC to 160DC with 5DC increments

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HEATING AT THE SPEED OF LIGHT Circular Type Halogen Heating Technology

allows heat to penetrate uniquely from all sides

in to the sample. Uniquely designed GOLD REFLECTIVE interior

test area creates uniform distribution of heat to increase performance while decreasing test

time Precision Heating – temperature controls are

incrementally controlled by the software for test accuracy Lightening Startup – test area reaches full temperature in less than a minute Rapid Results – performs upto 40% faster than

conventional IR methods

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MB45 THE ADVANCED MOISTURE ANALYZER Technology : Halogen – 400W Lamp, 4000 Hrs Life Capacity : 45g Readability : 0.001g Repeatability : 0.05% for 3g sample & 0.015% for 10g

sample Moisture Range : 0.01% to 100% Temperature Range : 50º to 200º C in 1º C increments Timer : 1 to 120 minutes in increments of 10 seconds Display : 128 x 64 pixel Graphical Backlit LCD Displays : % moisture, % solids, time, temperature,

weight, test ID & drying curve

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MB45 Menu Setup & Display

MB45 Menu Setup

* Very easy to set parameters

* Ease of use

* Easy to save parameters

MB45 Display

* Best Display in Industry

* Clear Visualization of all

Parameters, Information,

Results & On-Line curve

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MB45 Menu Setup & Display

* On-line Curve is for understanding Behavior of sample analysis- How much moisture loss is happening at time & temp. differentiation.

* This feature also helps to understand sample analysis of unknown

samples.

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MB45 MOISTURE ANALYZER MB45 THE ADVANCED MOISTURE ANALYZER Contd...

Test Library to Store, Edit & Run Tests Powerful – program & recall up to 50 Drying Procedures Easy – once programmed, simply select & run the test Flexible – allows simple test editing to find best test

results

Four selectable automatic drying profiles allow for easy one step drying, simply set the temperature and time, and begin

Enhanced Shut-off options – Timed, Manual, Auto (A30,

A60, A90) & Auto free Statistical function for simple tracking and recording of

standard deviation over time. The MB45 does all the calculations and provides the end result. Great for Quality Control and

Assurance applications

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MB45 Market Segments Pharmaceutical

Excess moisture will adversely affect the product stability, reactivity & effectiveness

Most pharma compounds & molecules are hygroscopic

Bio-technology Excess moisture will adversely affect the product

stability, reactivity & effectiveness Enzymes would loose the enzymatic properties Excess moisture could lead to microbial & fungal

growth Vaccine Manufacturing

Moisture content should be below 3% in lyophilized vaccines – WHO recommendation

Excess moisture will affect efficacy of vaccine, shelf life

induce fungal & microbial growth

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MB45 Market Segments Contd...

Chemical Manufacturers Excess mositure would reduce shelf life of end product Inprocess testing of intermediates essential to ensure quality of end product

Food Moisture content critical to economic losses in commodities due to spoilage Moisture loss is rapid in fruit & vegetables and must be monitored Incorrect mositure content results in loss of vitamins, nutritional value & esthetics

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Grain / Feed Applications Moisture influences nutritional contents such as protein in grain & feeds Each grain kernel hosts thousands of bacteria & fungal spores. Mositure above 13.5% activates growth & ultimately spoilage and loss

Plastics Moisture in plastics causes many problems

ranging from cosmetic imperfections to stress induced failure

Thermoplastics Resin must be absolutely dry, even minor surface residue causes problems Moisture in the resin causes voids (bubbles) &

weak knit lines in finished parts

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Pulp & Paper Moisture influences tensile strenght,

stiffness & elasticity

Tissue Banks Moisture dictates the shelf life of

lyophilized/freeze dried human allograft

tissues Moisture analysis currently done during

freeze drying process as well as at the end of process Moisture analysis currently done by

conventional

oven method – takes up to 3 to 6 hours

Documents

Moisture Content Determination