Sl. No. Job Role Responsibilities

1

Sample Receipt &
Preparation

a. Inspect received samples for identification, labeling, and

quantity.

b. Verify that the sample quantity meets the minimum testing

requirement (approximately 1 kg or as specified by the test

method).

c. Assign a unique sample identification number and maintain

sample receipt records.

d. Prepare samples using appropriate crushing and grinding

techniques to achieve complete mineral liberation for lumpy

samples

e. Reduce sample size using representative sampling methods

(preferably Coning & Quartering or Riffle Splitter) to obtain a

representative analytical sample.

f. Pulverize the representative sample to the specified particle

size (typically -150 µm or as required by the test method).

g. Store the remaining sample securely as a retained/reference

sample for future verification or repeat analysis.

h. Ensure proper cleaning of crushers, grinders, pulverizers, and

accessories between samples to prevent cross-contamination.

i. Record all sample preparation activities in the laboratory





logbook

2

Procurement &
Inventory

Management

a. Procure analytical-grade chemicals, reagents, acids, bases,

indicators, solvents, and Certified Reference Materials (CRMs)

as specified in ASTM, BIS/IS, ISO, EN, or other applicable

standards.

b. Verify certificates of analysis (CoA), purity, expiry dates, and

storage requirements before use.

c. Procure laboratory consumables such as filter papers, crucibles,

volumetric glassware, plastic ware, pipettes, laboratory gases,

Personal Protective Equipment (PPE), etc.

d. Ensure availability of laboratory equipment such as filtration

units, vacuum pumps, distillation units, fume hoods, ultrasonic

cleaners, hot plates, magnetic stirrers, muffle furnaces, platinum

crucibles, balances, and drying ovens.

e. Maintain inventory records, stock levels, issue registers, and

reorder points for consumables and chemicals.

f. Coordinate with approved ve

📌 General Chemist (Chennai)
🏢 SRI PRIYANKA GEO COMMEX
📍 Chennai