To prevent isomerization and degradation during handling of samples and standards, (stock) solutions of β-carotene and long-chain CPs, for example, β-apocarotenals, have to be prepared and stored under light protection and a protective atmosphere by using inert gases, such as argon or nitrogen, and stored at − 20°C to − 80°C [ 81, 91, 112].
Natural rivers and canalized rivers away from artificial cuts need no protection against seepage and only light protection of banks against erosion.
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The extract was evaporated under reduced pressure using a rotavapor, and then stored under light protection.
These solutions have been stored in a refrigerator with light protection.
Stray light protection is crucial and the whole beam path is located inside black anodized lens tubes and mirror housings.
The results showed the importance of appropriate light protection during the drug development process, storage and handling.
For this reason, as well as in response to firms' demands for more flexibility, reforms of employment protection have often introduced dual protection systems, with high employment protection on permanent contracts coexisting with lighter protection on temporary contracts.
The obtained results suggests that the design of solid dosage forms of nifedipine such as a fast dissolving nifedipine tablets is possible with the advantages of low required light protection.
For preparation of the reaction mixture, 1 mL cuvettes, covered with aluminum foil for light protection, were filled with 300 µL 62.5 mM HEPES, 75 µL 1.0 mM EDTA, 75 µL 120 mM Na2CO3, 75 µL 120 mM l-methionine, 150 µL 750 µM nitro-blue tetrazolium (NBT), and 100 µL of plant extract.
The second duplication event involved copy 2; as before, one copy retained the (new) plesiomorphic function3 (focusing light, protection against damage) and the plesiomorphic location (many tissues), while the other copy retained the plesiomorphic function coupled with a change in location (restricted to the lens).
